Modified the way the location tile works

Change-Id: I3c7c51c8d7e3a8c003c37d1b55a6503a9bbeaf64

Conflicts:
	packages/SystemUI/res/drawable-hdpi/ic_qs_location_off.png
	packages/SystemUI/res/drawable-hdpi/ic_qs_location_on.png
	packages/SystemUI/res/drawable-mdpi/ic_qs_location_off.png
	packages/SystemUI/res/drawable-mdpi/ic_qs_location_on.png
	packages/SystemUI/res/drawable-xhdpi/ic_qs_location_off.png
	packages/SystemUI/res/drawable-xhdpi/ic_qs_location_on.png
	packages/SystemUI/src/com/android/systemui/quicksettings/LocationTile.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java