[1/3] base: allow disabling non intrusive incall ui

PS2: Use AOKP Settings Table
PS3: Rebase

Conflicts:
	core/java/android/provider/Settings.java

Change-Id: I52cdcce53fa6e00e6d95ca644a413e532d946797
Merge branch 'kitkat' of https://github.com/AOKP/frameworks_base into kitkat