[arista]: Add new 48x50G + 8x100G hwsku for Lodoga (#5452)

device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-D48C8/port_config.ini

@@ -0,0 +1,57 @@
+# name          lanes             alias         index  speed
+Ethernet0       1,2               Ethernet1/1   1      50000
+Ethernet2       3,4               Ethernet1/3   1      50000
+Ethernet4       5,6               Ethernet2/1   2      50000
+Ethernet6       7,8               Ethernet2/3   2      50000
+Ethernet8       9,10              Ethernet3/1   3      50000
+Ethernet10      11,12             Ethernet3/3   3      50000
+Ethernet12      13,14             Ethernet4/1   4      50000
+Ethernet14      15,16             Ethernet4/3   4      50000
+Ethernet16      21,22             Ethernet5/1   5      50000
+Ethernet18      23,24             Ethernet5/3   5      50000
+Ethernet20      17,18             Ethernet6/1   6      50000
+Ethernet22      19,20             Ethernet6/3   6      50000
+Ethernet24      25,26,27,28       Ethernet7/1   7      100000
+Ethernet28      29,30,31,32       Ethernet8/1   8      100000
+Ethernet32      37,38,39,40       Ethernet9/1   9      100000
+Ethernet36      33,34,35,36       Ethernet10/1  10     100000
+Ethernet40      41,42             Ethernet11/1  11     50000
+Ethernet42      43,44             Ethernet11/3  11     50000
+Ethernet44      45,46             Ethernet12/1  12     50000
+Ethernet46      47,48             Ethernet12/3  12     50000
+Ethernet48      53,54             Ethernet13/1  13     50000
+Ethernet50      55,56             Ethernet13/3  13     50000
+Ethernet52      49,50             Ethernet14/1  14     50000
+Ethernet54      51,52             Ethernet14/3  14     50000
+Ethernet56      57,58             Ethernet15/1  15     50000
+Ethernet58      59,60             Ethernet15/3  15     50000
+Ethernet60      61,62             Ethernet16/1  16     50000
+Ethernet62      63,64             Ethernet16/3  16     50000
+Ethernet64      69,70             Ethernet17/1  17     50000
+Ethernet66      71,72             Ethernet17/3  17     50000
+Ethernet68      65,66             Ethernet18/1  18     50000
+Ethernet70      67,68             Ethernet18/3  18     50000
+Ethernet72      73,74             Ethernet19/1  19     50000
+Ethernet74      75,76             Ethernet19/3  19     50000
+Ethernet76      77,78             Ethernet20/1  20     50000
+Ethernet78      79,80             Ethernet20/3  20     50000
+Ethernet80      85,86             Ethernet21/1  21     50000
+Ethernet82      87,88             Ethernet21/3  21     50000
+Ethernet84      81,82             Ethernet22/1  22     50000
+Ethernet86      83,84             Ethernet22/3  22     50000
+Ethernet88      89,90,91,92       Ethernet23/1  23     100000
+Ethernet92      93,94,95,96       Ethernet24/1  24     100000
+Ethernet96      101,102,103,104   Ethernet25/1  25     100000
+Ethernet100     97,98,99,100      Ethernet26/1  26     100000
+Ethernet104     105,106           Ethernet27/1  27     50000
+Ethernet106     107,108           Ethernet27/3  27     50000
+Ethernet108     109,110           Ethernet28/1  28     50000
+Ethernet110     111,112           Ethernet28/3  28     50000
+Ethernet112     117,118           Ethernet29/1  29     50000
+Ethernet114     119,120           Ethernet29/3  29     50000
+Ethernet116     113,114           Ethernet30/1  30     50000
+Ethernet118     115,116           Ethernet30/3  30     50000
+Ethernet120     121,122           Ethernet31/1  31     50000
+Ethernet122     123,124           Ethernet31/3  31     50000
+Ethernet124     125,126           Ethernet32/1  32     50000
+Ethernet126     127,128           Ethernet32/3  32     50000

device/arista/x86_64-arista_7050cx3_32s/Arista-7050CX3-32S-D48C8/sai.profile

@@ -0,0 +1,2 @@
+SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/td3-a7050cx3-32s-48x50G+8x100G.config.bcm
+SAI_NUM_ECMP_MEMBERS=64