oft: change default port to 6653

6653 is the IANA assigned port number.
diff --git a/tools/ovs-ctl/ovs-ctl.py b/tools/ovs-ctl/ovs-ctl.py
index 14bcbfb..9701669 100755
--- a/tools/ovs-ctl/ovs-ctl.py
+++ b/tools/ovs-ctl/ovs-ctl.py
@@ -169,7 +169,7 @@
                      default="127.0.0.1")
 
 gParser.add_argument("--cport", type=int, help="Controller Port", 
-                     default=6633)
+                     default=6653)
 gParser.add_argument("--dpid", help="DPID")
 
 gParser.add_argument("--max_backoff", help="VSwitchD max backoff value",