qa_crowbarsetup: Fix manila skip when using docker
qa_crowbarsetup: Fix manila skip when using docker

Commit edcc942069172138 uses the wrong logic. We want to *skip*
the manila proposal if we have docker deployed.

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