qa_crowbarsetup: fix waiting for nova services
qa_crowbarsetup: fix waiting for nova services

as intended to be added in commit 8707ea26
but the quoting was not correct, so the service-list only got run once

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