[device][platform] d6254qs d6556 platform porting

[device][platform] sensor and status led support for d7032q28b d7254q28b d7264q28b d6254qs d6556
[device][platform] qos support for d7032q28b d7254q28b
[device][platform] service configuration files for d7032q28b d7254q28b d7264q28b d6254qs d6556

Author: klhaung

device/inventec/x86_64-inventec_d6254qs-r0/INVENTEC-D6254QS/port_config.ini

@@ -0,0 +1,74 @@
+# name          lanes             alias
+Ethernet0        16             Ethernet0
+Ethernet4        15             Ethernet4
+Ethernet8        14             Ethernet8
+Ethernet12       13             Ethernet12
+Ethernet16       24             Ethernet16
+Ethernet20       23             Ethernet20
+Ethernet24       22             Ethernet24
+Ethernet28       21             Ethernet28
+Ethernet32       28             Ethernet32
+Ethernet36       27             Ethernet36
+Ethernet40       26             Ethernet40
+Ethernet44       25             Ethernet44
+Ethernet48       32             Ethernet48
+Ethernet52       31             Ethernet52
+Ethernet56       30             Ethernet56
+Ethernet60       29             Ethernet60
+Ethernet64       48             Ethernet64
+Ethernet68       47             Ethernet68
+Ethernet72       46             Ethernet72
+Ethernet76       45             Ethernet76
+Ethernet80       52             Ethernet80
+Ethernet84       51             Ethernet84
+Ethernet88       50             Ethernet88
+Ethernet92       49             Ethernet92
+Ethernet96       56             Ethernet96
+Ethernet100      55             Ethernet100
+Ethernet104      54             Ethernet104
+Ethernet108      53             Ethernet108
+Ethernet112      60             Ethernet112
+Ethernet116      59             Ethernet116
+Ethernet120      58             Ethernet120
+Ethernet124      57             Ethernet124
+Ethernet128      64             Ethernet128
+Ethernet132      63             Ethernet132
+Ethernet136      62             Ethernet136
+Ethernet140      61             Ethernet140
+Ethernet144      68             Ethernet144
+Ethernet148      67             Ethernet148
+Ethernet152      66             Ethernet152
+Ethernet156      65             Ethernet156
+Ethernet160      72             Ethernet160
+Ethernet164      71             Ethernet164
+Ethernet168      70             Ethernet168
+Ethernet172      69             Ethernet172
+Ethernet176      76             Ethernet176
+Ethernet180      75             Ethernet180
+Ethernet184      74             Ethernet184
+Ethernet188      73             Ethernet188
+Ethernet192      82             Ethernet192
+Ethernet196      84             Ethernet196
+Ethernet200      81             Ethernet200
+Ethernet204      83             Ethernet204
+Ethernet208      78             Ethernet208
+Ethernet212      80             Ethernet212
+Ethernet216      77             Ethernet216
+Ethernet220      79             Ethernet220
+Ethernet224      98             Ethernet224
+Ethernet228      100            Ethernet228
+Ethernet232      97             Ethernet232
+Ethernet236      99             Ethernet236
+Ethernet240      104            Ethernet240
+Ethernet244      102            Ethernet244
+Ethernet248      103            Ethernet248
+Ethernet252      101            Ethernet252
+Ethernet256      108            Ethernet256
+Ethernet260      106            Ethernet260
+Ethernet264      107            Ethernet264
+Ethernet268      105            Ethernet268
+Ethernet272      112            Ethernet272
+Ethernet276      110            Ethernet276
+Ethernet280      111            Ethernet280
+Ethernet284      109            Ethernet284
+

device/inventec/x86_64-inventec_d6254qs-r0/INVENTEC-D6254QS/sai.profile

@@ -0,0 +1,2 @@
+SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/td2-d6254qs-72x10G.config.bcm.inventec
+SAI_NUM_ECMP_MEMBERS=32