[Launcher Jank] Add bg handler and callback handler to RotationChangeProvider

1. Make DisplayManager#registerDisplayListener()/unsubscribeToRotation()  binder calls on background thread
2. Receive callback from DisplayManager on handler at choice of owner of RotationChangeProvider

Fix: 333771185
Test: record prefetto trace
Flag: NONE not exist
Change-Id: I7091d000ad9a5c17987438b25ff464a0a83114d1