Changes

UPSTREAM: 46771: Allow pv-binder-controller to List Nodes/Zones
Available in the Cluster
Backport of K8s PR #46771.
Cinder provisioner chooses a zone from the list of zones available in
the cluster in case no zone is specified in the corresponding Storage
Class. However, currently the provisioner (pv-binder-controller) does
not have right to get the list of nodes/zones available in the cluster.
That's why the pv-binder-controller is being given permission to list
and watch nodes in the cluster.
 (commit: 54b994c)