Why I did it
Added support for the device N3248PXE
How I did it
Implemented the support for the platform N3248PXE
n3248pxe_unit_test_log.txt
Switch Vendor: DellEMC
* Switch SKU: N3248PXE
* ASIC Vendor: Broadcom
* SONiC Image: sonic-broadcom.bin
How to verify it
Verified the show platform commands
