Fix bug in cloudsnapshot functions
Fix bug in cloudsnapshot functions

When running cloudsnapshot functions on a system that is running several
mkcloud created clouds, the createcloudsnapshot/restorecloudfromsnapshot
functions are a bit too greedy removing logical volumes.

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