settings: Enable location mode header switch

Change-Id: I347e769351bc15daa87d3b6d684afe4e80416ecc
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

Conflicts:
	src/com/android/settings/Settings.java
Settings : Switch state fix

Since the switch views are shared, we need to recreate them
in order to prevent from being reused as they don't share state.

Change-Id: I4d7038f37883e1791c8c2b0009f0adb85ebb2b88