deploy: add missing VolumeAttributesClasses RBAC for NFS

The RBAC was only added to the file under the deploy/ directory. Running

    make containerized-build TARGET=generate-deploy

caused the RBAC to be removed. With the RBAC added to the template in
the api/ directory, the RBAC will be included when generating the
deploy/ directory.

Fixes: aaab765
Signed-off-by: Niels de Vos <ndevos@ibm.com>

Author: nixpanic

api/deploy/kubernetes/nfs/csi-provisioner-rbac-cr.yaml

@@ -46,3 +46,6 @@ rules:
   - apiGroups: ["snapshot.storage.k8s.io"]
     resources: ["volumesnapshots"]
     verbs: ["get", "list"]
+  - apiGroups: ["storage.k8s.io"]
+    resources: ["volumeattributesclasses"]
+    verbs: ["get", "list", "watch"]