Storage: updated the snapshot tests to use DataSources instead of DVs#3011

kshvaika wants to merge 1 commit intoRedHatQE:mainRedHatQE/openshift-virtualization-tests:mainfrom

kshvaika:use_datasources_in_test_snapshotkshvaika/openshift-virtualization-tests:use_datasources_in_test_snapshotCopy head branch name to clipboard