crowbar-prep.sh: move constants to beginning of script
crowbar-prep.sh: move constants to beginning of script

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