Add break explicitly to avoid future unexpected fall-through

Change-Id: I58cfe8b0997b3ec94c2913e93575aa6770eee71f
diff --git a/core/net/src/main/java/org/onosproject/net/resource/impl/LinkResourceManager.java b/core/net/src/main/java/org/onosproject/net/resource/impl/LinkResourceManager.java
index 14745b1..d60dee2 100644
--- a/core/net/src/main/java/org/onosproject/net/resource/impl/LinkResourceManager.java
+++ b/core/net/src/main/java/org/onosproject/net/resource/impl/LinkResourceManager.java
@@ -254,6 +254,7 @@
                 break;
             case MPLS_LABEL:
                 result.add(new MplsLabelResourceRequest());
+                break;
             default:
                 break;
             }