Change GUI and GUI2 to be apps rather than core features

Change-Id: I862e5bdbccc29fd78716159e168e7a14bc5053e1
diff --git a/tools/test/bin/onos-check-apps b/tools/test/bin/onos-check-apps
index 1fd7546..8057adf 100755
--- a/tools/test/bin/onos-check-apps
+++ b/tools/test/bin/onos-check-apps
@@ -26,7 +26,7 @@
 
     # Normalize the expected apps
     apps=${2:-$ONOS_APPS}
-    apps=${apps:-drivers,openflow}
+    apps=${apps:-gui,drivers,openflow}
     (for app in ${apps//,/ }; do echo ${appnameextra}${app}; done) | sort > $aux.2
 
     # Check for differences