Merge changes Ic9c27552,Ie3980cd5,I42bf2bdc into oc-dr1-dev

* changes:
  Revert "Revert "init: poll in first stage mount if required devices are not found""
  Revert "Revert "ueventd: remove PlatformDeviceList""
  fs_mgr: differentiate if fs_mgr_set_verity() was skipped or disabled