Stop projection on display removal

Listen to display removal and stop the projection if the display
currently being recorded is removed.

Test: android.media.projection.cts.MediaProjectionStoppingTest#mediaProjection_connectedDisplayRemoved_stops
Bug: 439017127
Flag: com.android.media.projection.flags.stop_on_display_removal
Change-Id: I7147bcaed7a4ccfd956cf30ab80feaab354613bd