Updating property name to openflowPorts

Change-Id: I7a589cc1ce2a9bae9fc48751fa81acc3c588d364
diff --git a/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java b/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
index cff8cdc..99ca6b2 100644
--- a/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
+++ b/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
@@ -97,9 +97,9 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected ComponentConfigService cfgService;
 
-    @Property(name = "openflowPort", value = DEFAULT_OFPORT,
-            label = "Port number used by OpenFlow protocol; default is 6653")
-    private String openflowPort = DEFAULT_OFPORT;
+    @Property(name = "openflowPorts", value = DEFAULT_OFPORT,
+            label = "Port numbers (comma separated) used by OpenFlow protocol; default is 6633,6653")
+    private String openflowPorts = DEFAULT_OFPORT;
 
     @Property(name = "workerThreads", intValue = DEFAULT_WORKER_THREADS,
             label = "Number of controller worker threads; default is 16")