settings: volume rocker controll (wake up and volume) thanks to

CM and omni for the proxy sensor idea

Change-Id: I3dbb8c276fb7c73c8e3ced1624a1ff8e03d9f4ca
Signed-off-by: PipelinerArd <kristoferard@gmail.com>

Conflicts:
	res/values/slim_strings.xml
	src/com/android/settings/DisplaySettings.java