Update input windows when moving display to top

If per-display focus is not enabled, moving display to top may cause
the focus change. We need to update input windows to keep input
dispatcher up-to-date.

Change-Id: I7934dd76395f249c3b4c1d30f15d15436a1cebf0
Fix: 121303595
Fix: 121343696
Test: atest ActivityManagerDisplayLockedKeyguardTests
1 file changed