Remove ContentResolver binder call from UI thread

Calling mContentResolver.notifyChange was resulting in long binder calls
(~30ms) in the sysui main thread during LOCKSCREEN_TRANSITION_TO_AOD.

Test: KeyguardSliceProviderTest
Bug: 289485377
Change-Id: I5c1ecef9d8144ac5fa30cf10f90b4151a54a09a7
2 files changed