[2/3] Telephony: allow disabling non intrusive incall ui

Change-Id: I54c07211dc121117543ccb8a4799efa491e5a469
Quiet Hours Ringer (1/3)

Juba Implemented Changed Logic
	(24-hours = true)

Change-Id: I6ebd168d4a5ec2220ee481b8b6258635d53bb57b
Merge "Quiet Hours Ringer (1/3)" into kitkat