Why I did it
Added Support for Alphanetworks SNJ60D0-320F platform
How I did it
Implemented the support for Alphanetworks SNJ60D0-320F platform
Platform: x86_64-alphanetworks_snj60d0_320f-r0
HwSKU: Alphanetworks-SNJ60D0-320F
ASIC: broadcom
ASIC Count: 1
How to verify it
Verified the show command outputs
