Touch-ups to patchpanel app, including adding to Buck build.

Change-Id: I212a575d50f3a38dea83b9ebe0c004b6267b0cbf
diff --git a/apps/patchpanel/src/main/java/org/onosproject/patchpanel/impl/package-info.java b/apps/patchpanel/src/main/java/org/onosproject/patchpanel/impl/package-info.java
index 6bee0e2..7c109d2 100644
--- a/apps/patchpanel/src/main/java/org/onosproject/patchpanel/impl/package-info.java
+++ b/apps/patchpanel/src/main/java/org/onosproject/patchpanel/impl/package-info.java
@@ -16,6 +16,6 @@
  */
 
 /**
- * patch panel-related CLI commands(in implementation folder).
+ * Patch panel-related CLI commands(in implementation folder).
  */
 package org.onosproject.patchpanel.impl;