Change keystone region to CustomRegion, remove freeipa from .env

Change-Id: If591d03ef7844f2fd89ead66cac0fa94618dbf68
Related-Prod: PROD-23724 (PROD:23724)
diff --git a/classes/cluster/virtual-mcp11-aio/openstack/init.yml b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
index 6585152..1c5530e 100755
--- a/classes/cluster/virtual-mcp11-aio/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
@@ -46,7 +46,7 @@
     openstack_node_role: primary
     cluster_public_host: ${_param:single_address}
     cluster_public_protocol: http
-    openstack_region: RegionOne
+    openstack_region: CustomRegion
     admin_email: root@localhost
     rabbitmq_openstack_password: workshop
     galera_server_cluster_name: openstack_cluster
@@ -252,6 +252,7 @@
           enabled: ${_param:rabbitmq_ssl_enabled}
   keystone:
     server:
+      admin_region: ${_param:openstack_region}
       database:
         ssl:
           enabled: ${_param:galera_ssl_enabled}