fsogsmd: dbus_service: implement checkAvailability() which has been an empty stub
fsogsmd: dbus_service: implement checkAvailability() which has been an empty stub

slyon/debian-fso-deviced,slyon/debian-libfsoframework,slyon/debian-fso-usaged,slyon/debian-fso-deviced,slyon/debian-libfsoframework,slyon/debian-fso-usaged