Refactor tls certs for xmpp

Related: PROD-23929 (PROD:23929)

Change-Id: I5008c93b65fa42c8198e0e064aad4c738305cc44
diff --git a/tests/pillar/control40.sls b/tests/pillar/control40.sls
index 5351ef8..f98a28f 100644
--- a/tests/pillar/control40.sls
+++ b/tests/pillar/control40.sls
@@ -98,6 +98,14 @@
       id: 2
     - host: 127.0.0.1
       id: 3
+    xmpp:
+      tls:
+        enabled: True
+        auth:
+          enabled: True
+        cert_file: /etc/contrail/server.pem
+        key_file: /etc/contrail/privkey.pem
+        ca_cert_file: /etc/contrail/ca-cert.pem
   database:
     version: 4.0
     config_only: true