File _servicedata of Package libretro-gambatte

<servicedata>
<service name="tar_scm">
            <param name="url">https://github.com/libretro/gambatte-libretro.git</param>
          <param name="changesrevision">890a2dd67f16f041b21e58e7f113a5758e75fbcd</param></service></servicedata>