[1/3] Base: update Quiet Hours

SystemUI: Remove broadcast from QH toggles

Obsolete per this patch:
	https://gerrit.slimroms.net/#/c/5814/2

PS3:
-added pause and start now
-use start/stop broadcast to update active state

PS4:
-cleanup

Change-Id: Ie8990c96cd7cbf5e8c490da0240a4166d9dd5ed0