Added missing python modules to the configure.ac checks

Change-Id: I385cca5c91a4d557c818f668d2ded14d8428ea79
Signed-off-by: Antoni S. Puimedon <asegurap@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/21317
Reviewed-by: Dan Kenigsberg <danken@redhat.com>
Tested-by: Yaniv Bronhaim <ybronhei@redhat.com>