Handle agent_boot_time option

Change-Id: Ieaf178979a1e31bd62c922cc2bb1b12147ff2cec
Related-Prod: https://mirantis.jira.com/browse/PROD-24038
diff --git a/tests/pillar/control_cluster.sls b/tests/pillar/control_cluster.sls
index 1a1d30b..fcfb79e 100644
--- a/tests/pillar/control_cluster.sls
+++ b/tests/pillar/control_cluster.sls
@@ -9,6 +9,7 @@
     api_workers: 2
     rpc_workers: 2
     dhcp_lease_duration: 86400
+    agent_boot_time: 900
     backend:
       engine: contrail
       #contrail_discovery_host