Override redirect host for openstack_web in a correct way

Change-Id: Icdb4188fe0a99efa412bf4733e6675a2165e1416
diff --git a/classes/cluster/os-ha-contrail/openstack/proxy.yml b/classes/cluster/os-ha-contrail/openstack/proxy.yml
index 9521511..9a19647 100755
--- a/classes/cluster/os-ha-contrail/openstack/proxy.yml
+++ b/classes/cluster/os-ha-contrail/openstack/proxy.yml
@@ -21,5 +21,6 @@
     server:
       site:
         nginx_ssl_redirect_openstack_web:
-          host:
-            name: "$host"
+          redirect:
+            protocol: https
+            host: $host