upgrade platform drivers for D7054, add pmon control & add bcm config…#3423

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habeebmohammed wants to merge 3 commits intosonic-net:masterfrom

habeebmohammed:Inventec_cyp

Commits on Sep 9, 2019

upgrade platform drivers for D7054, add pmon control & add bcm config file for dynamicPortBreakout
mohammedhabeebinventec
committed

Commits on Sep 19, 2019