App Circle Sidebar: Support for Configurable Trigger Region[2/2]

Change-Id: I3a6ec82de4f330ad59a84fda2c6291f9af4c451a

Conflicts:
	res/values/illusion_strings.xml
	res/xml/aicp_app_circlebar.xml
	src/com/android/settings/aicp/AppCircleBar.java