fix metadata for contrail 4.x

Change-Id: I5a5aa39f72cd745cf12309fe8e9e65d7b4075f5e
diff --git a/opencontrail/control/analytics4_0.yml b/opencontrail/control/analytics4_0.yml
index 11ad4d3..a426e02 100644
--- a/opencontrail/control/analytics4_0.yml
+++ b/opencontrail/control/analytics4_0.yml
@@ -30,9 +30,9 @@
       config_only: true
       discovery:
         host: None
+      identity:
+        host: ${_param:openstack_control_address}
       analytics:
-        identity:
-          host: ${_param:openstack_control_address}
         members:
         - host: ${_param:opencontrail_analytics_node01_address}
         - host: ${_param:opencontrail_analytics_node02_address}