Fix a bug where LocationManager's addGpsStatusListener does not throw a

SecurityException if LocationManagerService.mGpsStatusProvider is null
even when ACCESS_FINE_LOCATION permission is not present.

Tested under Nexus 5 and Molly with lmp-mr1-dev build with
android.location2.cts.LocationManagerTest#testGpsStatusListener CTS
test case such that it has been modified to expect SecurityException
only from .addGpsStatusListener.

Bug: 18095673
Change-Id: I09f9e7224a3b0eab91001f5092f0ef6e0ada7b08