LockClock: do not use GPS if Play Services is available

In order to conserve battery, if the device has
Play Services installed (including the case where
Play Services is outdated), ignore the GPS location provider.

Change-Id: Iaeaa936128b91d5def10d2177a887f25c6a748f8
Signed-off-by: Roman Birg <roman@cyngn.com>