Include contrail tests to os-ha-contrail-40

Change-Id: I3564a83ea2223eaffe1d6f68ad05b7acd90a3383
diff --git a/classes/cluster/os-ha-contrail-40/infra/config.yml b/classes/cluster/os-ha-contrail-40/infra/config.yml
index 7ce56b0..c1ef306 100644
--- a/classes/cluster/os-ha-contrail-40/infra/config.yml
+++ b/classes/cluster/os-ha-contrail-40/infra/config.yml
@@ -1,5 +1,6 @@
 classes:
 - service.git.client
+- service.opencontrail.test.single
 - system.linux.system.single
 - system.linux.system.repo.mcp.apt_mirantis.saltstack
 - system.linux.system.repo.mcp.openstack