Introduce port_map file for dell S6000 (sonic-net#111)

debian/syncd.init

@@ -44,6 +44,10 @@ start)
         start_bcm
         DAEMON_ARGS+=" -p /etc/syncd.d/dell_s6000.profile "
 
+        if [ ${ENABLE_SAITHRIFT} == 1 ]; then
+            DAEMON_ARGS+=" -r -m /etc/syncd.d/dell_s6000_port_map.ini"
+        fi
+
     elif [ "$onie_platform" == "x86_64-dell_s6100_c2538-r0" ]; then
         start_bcm
         DAEMON_ARGS+=" -p /etc/syncd.d/dell_s6100.profile -N"

etc/syncd.d/dell_s6000_port_map.ini

@@ -0,0 +1,33 @@
+# alias         lanes
+Ethernet1       29,30,31,32
+Ethernet2       25,26,27,28
+Ethernet3       37,38,39,40
+Ethernet4       33,34,35,36
+Ethernet5       41,42,43,44
+Ethernet6       45,46,47,48
+Ethernet7       5,6,7,8
+Ethernet8       1,2,3,4
+Ethernet9       9,10,11,12
+Ethernet10      13,14,15,16
+Ethernet11      21,22,23,24
+Ethernet12      17,18,19,20
+Ethernet13      49,50,51,52
+Ethernet14      53,54,55,56
+Ethernet15      61,62,63,64
+Ethernet16      57,58,59,60
+Ethernet17      65,66,67,68
+Ethernet18      69,70,71,72
+Ethernet19      77,78,79,80
+Ethernet20      73,74,75,76
+Ethernet21      105,106,107,108
+Ethernet22      109,110,111,112
+Ethernet23      117,118,119,120
+Ethernet24      113,114,115,116
+Ethernet25      121,122,123,124
+Ethernet26      125,126,127,128
+Ethernet27      85,86,87,88
+Ethernet28      81,82,83,84
+Ethernet29      89,90,91,92
+Ethernet30      93,94,95,96
+Ethernet31      97,98,99,100
+Ethernet32      101,102,103,104