Automatic merge from submit-queue

Use storage.k8s.io/v1 in tests instead of v1beta1

This is trimmed version of #42477 and contains only tests of the new storage API. Together with #43285 it passes all dynamic provisioning tests on my GCE.

I did not change vsphere_utils.go and vsphere_volume_diskformat.go as @divyenpatel runs master vsphere tests with Kubernetes 1.5 - @divyenpatel, did I get it right?

@kubernetes/sig-storage-pr-reviews, @msau42, @ethernetdan
```release-note
NONE
```