qa_crowbarsetup.sh: Wait for powerdown getting reflected in crowbar
qa_crowbarsetup.sh: Wait for powerdown getting reflected in crowbar

In case a node is hanging on reboot, mkcloud was actually not
waiting for node shutdown and then tried to connect while ssh
was already off.

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