Update keystone policy management

Related: PROD-34318

Change-Id: I0a4b1fc49457b2543e34b02e198dbbf3dd450c57
diff --git a/tests/pillar/single.sls b/tests/pillar/single.sls
index ba1ef77..eec5c16 100644
--- a/tests/pillar/single.sls
+++ b/tests/pillar/single.sls
@@ -173,7 +173,9 @@
       host: 127.0.0.1
       port: 11211
     policy:
-      policy_file: 'policy.json'
+      admin_or_token_subject: 'rule:token_subject'
+      service_admin_or_token_subject": 'rule:service_or_admin'
+      identity:get_region:
     domain:
       testing:
         description: "Test domain"