cephfs: add read affinity mount option

This commit makes use of crush location labels from node
labels to supply `crush_location` and `read_from_replica=localize`
options during mount. Using these options, cephfs
will be able to redirect reads to the closest OSD,
improving performance.

Signed-off-by: Praveen M <m.praveen@ibm.com>

internal/nfs/nodeserver/nodeserver.go

@@ -54,7 +54,7 @@ func NewNodeServer(
 	t string,
 ) *NodeServer {
 	return &NodeServer{
-		DefaultNodeServer: *csicommon.NewDefaultNodeServer(d, t, map[string]string{}),
+		DefaultNodeServer: *csicommon.NewDefaultNodeServer(d, t, "", map[string]string{}, map[string]string{}),
 	}
 }