Merge pull request sonic-net#63 from gechiang/ghc-202205

Submodule update] azure/sonic-utilities.msft update to latest HEAD
* 20853a6 Revert "[GCU Feature Update] Cherry-pick Platform Validator PR to 202205  (sonic-net#2883)" (sonic-net#2908)
* 0ea47b4 [db_migrator] Remove hardcoded config and migrate config from minigraph (sonic-net#2887)