Cleaning up application categories.

Change-Id: Id3c937323123b6089cedf7b31cd01151f6aca8e1
diff --git a/apps/openstacknetworkingui/BUCK b/apps/openstacknetworkingui/BUCK
index d077328..ee452bd 100644
--- a/apps/openstacknetworkingui/BUCK
+++ b/apps/openstacknetworkingui/BUCK
@@ -28,7 +28,7 @@
 onos_app (
   app_name = 'org.onosproject.openstacknetworkingui',
   title = 'Openstack Networking UI',
-  category = 'Utility',
+  category = 'GUI',
   url = 'http://onosproject.org',
   description = 'Openstack Networking UI Service',
 )