deploy: add --extra-create-metadata arg to csi-snapshotter sidecar

This argument in csi-snapshotter sidecar allows us to receive
snapshot-name/snapshot-namespace/snapshotcontent-name metadata in the
CreateSnapshot() request.

For ex:

csi.storage.k8s.io/volumesnapshot/name
csi.storage.k8s.io/volumesnapshot/namespace
csi.storage.k8s.io/volumesnapshotcontent/name

This is a useful information which can be used depend on the use case we
have at our driver. The features like adding metadata to snapshot image
can consume this based on the need.

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>

charts/ceph-csi-rbd/templates/provisioner-deployment.yaml

@@ -102,6 +102,7 @@ spec:
             - "--v={{ .Values.logLevel }}"
             - "--timeout={{ .Values.provisioner.timeout }}"
             - "--leader-election=true"
+            - "--extra-create-metadata=true"
           env:
             - name: ADDRESS
               value: "unix:///csi/{{ .Values.provisionerSocketFile }}"

deploy/rbd/kubernetes/csi-rbdplugin-provisioner.yaml

@@ -73,6 +73,7 @@ spec:
             - "--v=5"
             - "--timeout=150s"
             - "--leader-election=true"
+            - "--extra-create-metadata=true"
           env:
             - name: ADDRESS
               value: unix:///csi/csi-provisioner.sock