getServices returns wrong order for depended services for libvirt module

Configure verb runs over getServices returned list and stop those
services, configure vdsm, and start them in reverse order. In this patch
I fix current order which starts vdsm before supervdsmd service

Change-Id: If8aba9ebdacc16e3af8153fb44360d3c4537e362
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/28818
Reviewed-by: Antoni Segura Puimedon <asegurap@redhat.com>
Reviewed-by: mooli tayer <mtayer@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>