Add missing system_ref_core_clock_khz in Arista-7800R3A-36D2-C36 and Arista-7800R3A-36D2-C72
Co-authored-by: Maxime Lorrillere <mlorrillere@arista.com>
Port indexes of front panel ports are not contiguous in multi-asic because we didn't distiguish between
front panel and internal ports, e.g., recycle ports. Fix this by assigning index to front panel port first
and then internal ports.
Co-authored-by: Song Yuan <64041228+ysmanman@users.noreply.github.com>