[test_gps] Improve support for AGPS

Make sure AGPS works and report more information about sattelite
statuses.

Signed-off-by: Philippe De Swert <philippe.deswert@jollamobile.com>
Merge branch 'master' of github.com:philippedeswert/libhybris-1

Signed-off-by: Philippe De Swert <philippe.deswert@jollamobile.com>

Conflicts:
	hybris/tests/test_gps.c