Cleaning up application categories.

Change-Id: Id3c937323123b6089cedf7b31cd01151f6aca8e1
diff --git a/apps/openroadm/BUCK b/apps/openroadm/BUCK
index 20cb8a1..d529c3b 100644
--- a/apps/openroadm/BUCK
+++ b/apps/openroadm/BUCK
@@ -17,7 +17,7 @@
 onos_app(
   app_name = 'org.onosproject.openroadm',
   title = 'Open ROADM',
-  category = 'Utility',
+  category = 'Optical',
   url = 'http://onosproject.org',
   included_bundles = BUNDLES,
   description = 'Open ROADM Application',