File _servicedata of Package ghpsdr3-alex

<servicedata>
<service name="tar_scm">
                <param name="url">https://github.com/alexlee188/ghpsdr3-alex</param>
              <param name="changesrevision">6c9c8e2538ed75ea4f2e597b9d8562e5e1d3ddb3</param></service></servicedata>