settings: Enable location mode header switch

This fixes the GPS on the SGH-i727 Skyrocket.

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

Conflicts:
	src/com/android/settings/Settings.java
	src/com/android/settings/location/LocationSettingsBase.java

Change-Id: I94383acf8a64d27391c9332d3ff7bb1c73905bf7
merge changes from Slim kk4.4 into local branch

Conflicts:
	src/com/android/settings/Settings.java

Change-Id: I72e5a00c2bcacbcf33fef0d4fc56ad9b84153e54