Settings: remove preference if device hasn't LockClock installed

Change-Id: I8b43501af12a3f4eba3a4ee87dbd416662639886
Signed-off-by: baked <travp624@gmail.com>
settings: Enable location mode header switch

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