start controller or node server based on config

if both controller and nodeserver flags are set/unset
cephcsi will start both server,

if only one flag is set, it will start relavent
service.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

deploy/cephfs/kubernetes/v1.13/helm/ceph-csi-cephfs/templates/provisioner-statefulset.yaml

@@ -71,6 +71,7 @@ spec:
           args :
             - "--nodeid=$(NODE_ID)"
             - "--type=cephfs"
+            - "--controllerserver=true"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
             - "--drivername=$(DRIVER_NAME)"