unite opencontrail parameters

Change-Id: I14192c00986ab165dd50b4e67546b66e6d16093e
diff --git a/tests/pillar/master_contrail.sls b/tests/pillar/master_contrail.sls
index c451532..39f9956 100644
--- a/tests/pillar/master_contrail.sls
+++ b/tests/pillar/master_contrail.sls
@@ -60,7 +60,9 @@
       allow_privileged: true
     network:
       engine: opencontrail
-      host: 10.0.170.70
+      config:
+        api:
+          host: 10.0.170.70
       port: 8082
       default_domain: default-domain
       default_project: default-domain:default-project