fix stats reply handler

Change-Id: Ibd218affcd3c5a2f1467c0954d0ecfdfb4a20baa
diff --git a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
index 04ccf83..70c9b1b 100644
--- a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
+++ b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
@@ -186,7 +186,7 @@
                     l.switchChanged(dpid);
                 }
             }
-            break;
+            // fall through to invoke handler
         case FLOW_REMOVED:
         case ERROR:
         case BARRIER_REPLY: