File _servicedata of Package libretro-beetle-supergrafx

<servicedata>
<service name="tar_scm">
                <param name="url">https://github.com/libretro/beetle-supergrafx-libretro.git</param>
              <param name="changesrevision">971adb210f36b92a1ec56fe8b070106084d35b2b</param></service></servicedata>