[BUG]: Replication Metro mode is not supported

[boyamurthy]

Creating Metro volume for PowerMax using dell-csi-replicator side car and replicator common controller. We should document this .

{"level":"info","logger":"controllers.PersistentVolumeClaim","msg":"Metro replication is not supported by Dell CSI Replication Controllers","persistentvolumeclaim":"{"Namespace":"test","Name":"pvol0"}","time":"2021-12-10T11:01:21.852954514Z"}
{"level":"info","logger":"controllers.PersistentVolume","msg":"Begin reconcile - PV Controller","persistentvolume":"{"Namespace":"","Name":"pmax-47003b3595"}","time":"2021-12-10T11:01:32.102772309Z"}