Description of problem:

When running in-tree Azure Disk tests with in-line or pre-provisioned volumes, the test creates a Pod / PV only with region label.

https://prow.ci.openshift.org/view/gs/origin-ci-test/pr-logs/pull/openshift_cloud-provider-azure/33/pull-ci-openshift-cloud-provider-azure-master-openshift-e2e-azure-ovn-ccm-install/1625866778196316160

Version-Release number of selected component (if applicable):

4.13

Steps to Reproduce:

1. Install a 4.13 cluster in useast2 region and with TechPreviewNoUpgrade enabled during installation and https://github.com/openshift/cloud-provider-azure/pull/33 compiled in. If you enable TechPreviewNoUpgrade later, it will work.
2. Run an e2e test with a pre-provisioned Azure Disk PV:

./openshift-tests run-test "[sig-storage] In-tree Volumes [Driver: azure-disk] [Testpattern: Pre-provisioned PV (ext4)] volumes should store data [Suite:openshift/conformance/parallel] [Suite:k8s] 

1. In a separate window, monitor created PVs:

oc get pv -o yaml -w 

Actual results:

PV is created with:

  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: topology.kubernetes.io/region
          operator: In
          values:
          - westus

Expected results:

PV with both region and zone affinity.

Similarly, Pods with in-line volumes should have their nodeAffinity (or nodeSelector) towards nodes in the right zone.