Minor face auth fixes

1. Reset auth state on device going to sleep
2. Stop face auth when user input is happening on primary bouncer
3. Fix some logging inconsistencies

Fixes: 275802536, 278627459
Test: atest DeviceEntryFaceAuthRepositoryTest, KeyguardFaceAuthInteractorTest
Change-Id: I6f10ec30d6ce08072b33fa66759568f026e35fdb