Reduce testing requirements for Grizzly
Reduce testing requirements for Grizzly

avoid to ssh if IP is not pingable
Allow the instance to not boot for now

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