api: add CSIProvisionerRBAC functions for the NFS-provisioner

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

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

@@ -0,0 +1,13 @@
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: "{{ .ServiceAccount }}-role"
+subjects:
+  - kind: ServiceAccount
+    name: "{{ .ServiceAccount }}"
+    namespace: "{{ .Namespace }}"
+roleRef:
+  kind: ClusterRole
+  name: nfs-external-provisioner-runner
+  apiGroup: rbac.authorization.k8s.io