Parametrized multi_tenancy to enable/disable authentication to Contrail API

Change-Id: I30ef75171a64e9212c4fb296298617316007d2a9
diff --git a/metadata/service/control/cluster.yml b/metadata/service/control/cluster.yml
index c90a8bd..214d471 100644
--- a/metadata/service/control/cluster.yml
+++ b/metadata/service/control/cluster.yml
@@ -21,6 +21,7 @@
     config:
       version: ${_param:opencontrail_version}
       enabled: true
+      multi_tenancy: true
       network:
         engine: neutron
         host: ${_param:cluster_vip_address}
diff --git a/metadata/service/control/control.yml b/metadata/service/control/control.yml
index 9c46a34..739bbc0 100644
--- a/metadata/service/control/control.yml
+++ b/metadata/service/control/control.yml
@@ -21,6 +21,7 @@
     config:
       version: ${_param:opencontrail_version}
       enabled: true
+      multi_tenancy: true
       network:
         engine: neutron
         host: ${_param:cluster_vip_address}
diff --git a/metadata/service/control/single.yml b/metadata/service/control/single.yml
index 5c76a63..f7d0293 100644
--- a/metadata/service/control/single.yml
+++ b/metadata/service/control/single.yml
@@ -21,6 +21,7 @@
     config:
       version: ${_param:opencontrail_version}
       enabled: true
+      multi_tenancy: true
       network:
         engine: neutron
         host: ${_param:single_address}