Create opModeFlow to always return correct status

Currently we do not watching for the op mode change, cause the status
to be not accurate, watching for the op mode change to fix.

Fix: 322916468
Test: manual - on Toggle Permission page and switch between apps
Test: unit test
Change-Id: Ib3f1e0f024bea80239ccdc23c5ba0f4994f5e3bc
7 files changed