File _servicedata of Package obs-service-git_tarballs

<servicedata>
  <service name="tar_scm">
    <param name="url">git@github.com:openSUSE/obs-service-git_tarballs.git</param>
    <param name="changesrevision">b5ca8d6d9d3e1093dc4c5dfbbbc201997913d0cc</param>
  </service>
</servicedata>