Update simon-single cell; make topoX view scrollable.

Change-Id: I21c60c50f60183481f6527716f3ed9744dbfe511
diff --git a/tools/test/cells/simon-single b/tools/test/cells/simon-single
index 6fac736..f28c714 100644
--- a/tools/test/cells/simon-single
+++ b/tools/test/cells/simon-single
@@ -4,4 +4,4 @@
 export OC1="192.168.56.1"
 export OCN="192.168.56.99"
 
-export ONOS_APPS="drivers,openflow,drivermatrix,null"
+export ONOS_APPS="drivers,openflow,fwd,null"