Add test for multi DNS, bnc#901497
Add test for multi DNS, bnc#901497

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