Fix check for openstack stack support
Fix check for openstack stack support

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