Allow separate control and vhost0 IPs in contrail-vrouter-agent.conf

Add possibility to separate the control path for XMPP communication
between vrouter and contrail controllers to go over a separate network
from tenant traffic.

Change-Id: If618adcf6a06c2da3089b62d7433adac2c431acd
Closes-bug: PROD-8436
diff --git a/tests/pillar/vrouter.sls b/tests/pillar/vrouter.sls
index b727821..fa00635 100644
--- a/tests/pillar/vrouter.sls
+++ b/tests/pillar/vrouter.sls
@@ -16,10 +16,12 @@
     enabled: True
     discovery:
       host: 127.0.0.1
+    bind:
+      address: 127.0.0.1
     interface:
       address: 127.0.0.1
       dev: eth0
       gateway: 127.0.0.1
       mask: /24
       dns: 127.0.0.1
-      mtu: 9000
\ No newline at end of file
+      mtu: 9000