[mellanox]: Correct the port_config.ini of MSN2010 (#2278)

* Correct the port configuration and add the index column

Signed-off-by: Kevin Wang <[email protected]>

Author: kevinwangsk

device/mellanox/x86_64-mlnx_msn2010-r0/ACS-MSN2010/port_config.ini

@@ -1,33 +1,23 @@
-# name          lanes    index
-Ethernet0       0        0
-Ethernet4       4        1
-Ethernet8       8        2
-Ethernet12      12       3
-Ethernet16      16       4
-Ethernet20      20       5
-Ethernet24      24       6
-Ethernet28      28       7
-Ethernet32      32       8
-Ethernet36      36       9
-Ethernet40      40       10
-Ethernet44      44       11
-Ethernet48      48       12
-Ethernet52      52       13
-Ethernet56      56       14
-Ethernet60      60       15
-Ethernet64      64       16
-Ethernet68      68       17
-Ethernet72      72       18
-Ethernet76      73       18
-Ethernet80      74       18
-Ethernet84      75       18
-Ethernet88      76       19
-Ethernet92      77       19
-Ethernet96      78       19
-Ethernet100     79       19
-Ethernet104     80       20
-Ethernet108     81       20
-Ethernet112     82       20
-Ethernet116     83       20
-Ethernet120     84       21
-Ethernet124     86       21
+# name          lanes               index
+Ethernet0       0                   0
+Ethernet4       4                   1
+Ethernet8       8                   2
+Ethernet12      12                  3
+Ethernet16      16                  4
+Ethernet20      20                  5
+Ethernet24      24                  6
+Ethernet28      28                  7
+Ethernet32      32                  8
+Ethernet36      36                  9
+Ethernet40      40                  10
+Ethernet44      44                  11
+Ethernet48      48                  12
+Ethernet52      52                  13
+Ethernet56      56                  14
+Ethernet60      60                  15
+Ethernet64      64                  16
+Ethernet68      68                  17
+Ethernet72      72,73,74,75         18
+Ethernet76      76,77,78,79         19
+Ethernet80      80,81,82,83         20
+Ethernet84      84,85,86,87         21