Show location icon when reporting GNSS measurements/status

GNSS measurements and status can be used to compute user location.
Hence, the location icon must be turned on in the status bar to
notify the user every time the measurements are reported to an
application. Also, check for location permission before delivery
as the application may have lost location permission.

Bug: 113332106
Test: Tested it manually using GNSS logger application.
Change-Id: I985610cab207af50a84e7e47390c51359375bb78