[DPB] [Mellanox] added capability files for SN2100 platform (#6016)

- Why I did it
platform.json and hwsku.json files are required for a feature called Dynamic Port Breakout

- How I did it
Created capability files according to platform specification SN2100

- How to verify it
Full qualification requires bugs fixes reported under sonic-buildimage

Signed-off-by: Vadym Hlushko <vadymh@nvidia.com>

device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/hwsku.json

@@ -0,0 +1,52 @@
+{
+    "interfaces": {
+        "Ethernet0": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet4": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet8": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet12": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet16": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet20": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet24": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet28": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet32": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet36": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet40": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet44": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet48": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet52": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet56": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        },
+        "Ethernet60": {
+            "default_brkout_mode": "1x100G[50G,40G,25G,10G]"
+        }
+    }
+}

device/mellanox/x86_64-mlnx_msn2100-r0/platform.json

@@ -0,0 +1,100 @@
+{
+    "interfaces": {
+        "Ethernet0": {
+            "index": "1,1,1,1",
+            "lanes": "0,1,2,3",
+            "alias_at_lanes": "etp1a, etp1b, etp1c, etp1d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet4": {
+            "index": "2,2,2,2",
+            "lanes": "4,5,6,7",
+            "alias_at_lanes": "etp2a, etp2b, etp2c, etp2d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet8": {
+            "index": "3,3,3,3",
+            "lanes": "8,9,10,11",
+            "alias_at_lanes": "etp3a, etp3b, etp3c, etp3d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet12": {
+            "index": "4,4,4,4",
+            "lanes": "12,13,14,15",
+            "alias_at_lanes": "etp4a, etp4b, etp4c, etp4d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet16": {
+            "index": "5,5,5,5",
+            "lanes": "16,17,18,19",
+            "alias_at_lanes": "etp5a, etp5b, etp5c, etp5d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet20": {
+            "index": "6,6,6,6",
+            "lanes": "20,21,22,23",
+            "alias_at_lanes": "etp6a, etp6b, etp6c, etp6d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet24": {
+            "index": "7,7,7,7",
+            "lanes": "24,25,26,27",
+            "alias_at_lanes": "etp7a, etp7b, etp7c, etp7d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet28": {
+            "index": "8,8,8,8",
+            "lanes": "28,29,30,31",
+            "alias_at_lanes": "etp8a, etp8b, etp8c, etp8d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet32": {
+            "index": "9,9,9,9",
+            "lanes": "32,33,34,35",
+            "alias_at_lanes": "etp9a, etp9b, etp9c, etp9d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet36": {
+            "index": "10,10,10,10",
+            "lanes": "36,37,38,39",
+            "alias_at_lanes": "etp10a, etp10b, etp10c, etp10d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet40": {
+            "index": "11,11,11,11",
+            "lanes": "40,41,42,43",
+            "alias_at_lanes": "etp11a, etp11b, etp11c, etp11d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet44": {
+            "index": "12,12,12,12",
+            "lanes": "44,45,46,47",
+            "alias_at_lanes": "etp12a, etp12b, etp12c, etp12d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet48": {
+            "index": "13,13,13,13",
+            "lanes": "48,49,50,51",
+            "alias_at_lanes": "etp13a, etp13b, etp13c, etp13d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet52": {
+            "index": "14,14,14,14",
+            "lanes": "52,53,54,55",
+            "alias_at_lanes": "etp14a, etp14b, etp14c, etp14d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet56": {
+            "index": "15,15,15,15",
+            "lanes": "56,57,58,59",
+            "alias_at_lanes": "etp15a, etp15b, etp15c, etp15d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        },
+        "Ethernet60": {
+            "index": "16,16,16,16",
+            "lanes": "60,61,62,63",
+            "alias_at_lanes": "etp16a, etp16b, etp16c, etp16d",
+            "breakout_modes": "1x100G[50G,40G,25G,10G],2x50G[40G,25G,10G],4x25G[10G]"
+        }
+    }
+}