Adding an STC scenario for fabric.p4

Change-Id: I3457ab67c2c97eab73623500ba3f6a75b9ed33a3
diff --git a/tools/test/scenarios/net-setup-trellis-hag.xml b/tools/test/scenarios/net-setup-trellis-hag.xml
index c7a5c7a..bccca73 100644
--- a/tools/test/scenarios/net-setup-trellis-hag.xml
+++ b/tools/test/scenarios/net-setup-trellis-hag.xml
@@ -70,7 +70,7 @@
         </group>
 
         <!-- set up the trellis environment -->
-        <step name="Trellis-Net-HAG-Setup.Set-Up-Trellis" exec="set-up-trellis-hag ${OCN}" requires="Trellis-Net-HAG-Setup.Activate-Apps"/>
+        <step name="Trellis-Net-HAG-Setup.Set-Up-Trellis" exec="set-up-trellis ${OCN}" requires="Trellis-Net-HAG-Setup.Activate-Apps"/>
 
         <!-- configure the trellis topology in ONOS -->
         <step name="Trellis-Net-HAG-Setup.Config-Topo"