Add missing break at the end of case clause

Change-Id: Ia854ac08279f88980e76f5294aed31274f723f69
diff --git a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
index 144dc7a..9da388c 100644
--- a/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
+++ b/core/net/src/main/java/org/onosproject/net/newresource/impl/ResourceDeviceListener.java
@@ -54,6 +54,7 @@
                 break;
             case PORT_ADDED:
                 registerPortResource(device, event.port());
+                break;
             default:
                 break;
         }