qa_openstack: Enable Magnum
qa_openstack: Enable Magnum

When running the jenkins job, enable Magnum. This currently installs
only the packages and the cofiguration is not complete but it's better
than nothing.

aspiers/automation,SUSE-Cloud/automation,vmoravec/automation,aspiers/automation,aspiers/automation,gosipyan/automation,SUSE-Cloud/automation,vmoravec/automation,SUSE-Cloud/automation,vmoravec/automation,gosipyan/automation,gosipyan/automation,aspiers/automation,gosipyan/automation,vmoravec/automation,SUSE-Cloud/automation