Handle dhcp_lease_duration option

Change-Id: I3b1a6ba31c55dde7e3e02e1eb3c46dddee515816
Closes-Bug: PROD-20880
diff --git a/tests/pillar/control_cluster.sls b/tests/pillar/control_cluster.sls
index 2b4e2af..1a1d30b 100644
--- a/tests/pillar/control_cluster.sls
+++ b/tests/pillar/control_cluster.sls
@@ -8,6 +8,7 @@
     version: liberty
     api_workers: 2
     rpc_workers: 2
+    dhcp_lease_duration: 86400
     backend:
       engine: contrail
       #contrail_discovery_host