Override python-cpopen package

Change-Id: I4cd9b67888b2ab663e597588ad86adc2cec6da53
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1023733
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/20489