Cleaning up app categories.

Change-Id: I30806c81bf9e8db87f31509d9a346960f79ef207
diff --git a/apps/tetunnel/BUCK b/apps/tetunnel/BUCK
index ae9ab9d..3ef3e65 100644
--- a/apps/tetunnel/BUCK
+++ b/apps/tetunnel/BUCK
@@ -6,7 +6,7 @@
 onos_app (
     app_name = 'org.onosproject.tetunnel',
     title = 'TE Tunnel Core App',
-    category = 'ACTN',
+    category = 'Traffic Steering',
     url = 'http://onosproject.org',
     description = 'Application to create and manage TE tunnels.',
     included_bundles = BUNDLES,