Add break explicitly to avoid future unexpected fall-through

Change-Id: I58cfe8b0997b3ec94c2913e93575aa6770eee71f

@@ -254,6 +254,7 @@ public class LinkResourceManager implements LinkResourceService {
                 break;
             case MPLS_LABEL:
                 result.add(new MplsLabelResourceRequest());
+                break;
             default:
                 break;
             }