Add midonet support for neutron.

Change-Id: Id0f071d8985dfd2680e26aeebff4caec8ac20a2c
diff --git a/tests/pillar/control_single.sls b/tests/pillar/control_single.sls
index 0817493..15f7a8c 100644
--- a/tests/pillar/control_single.sls
+++ b/tests/pillar/control_single.sls
@@ -1,7 +1,8 @@
 neutron:
   server:
     enabled: true
-    plugin: ml2
+    backend:
+      engine: contrail
     fwaas: false
     dns_domain: novalocal
     tunnel_type: vxlan
@@ -36,4 +37,4 @@
       region: RegionOne
       user: nova
       password: password
-      tenant: service
+      tenant: service
\ No newline at end of file