File _servicedata of Package gnome-firmware

<servicedata>
<service name="tar_scm">
                <param name="url">https://gitlab.gnome.org/hughsie/gnome-firmware-updater.git</param>
              <param name="changesrevision">9815567361e2045b4ff64b5c17c24f8fc02ab998</param></service></servicedata>