Fix keystone client v3 metadata for some services

This patch fixes metadata for keystone v3 client in the
following services:
  ironic
  radosgw-swift
  radosgw-s3

Change-Id: I8c8cd046079e3692b33e54159b464b80530f6763
diff --git a/keystone/client/v3/service/radosgw-swift.yml b/keystone/client/v3/service/radosgw-swift.yml
index 4fa6756..e3b8ac3 100644
--- a/keystone/client/v3/service/radosgw-swift.yml
+++ b/keystone/client/v3/service/radosgw-swift.yml
@@ -15,7 +15,7 @@
                 service_admin:
                   name: admin
                   project_id: service
-          service:
+          services:
             radosgw-swift:
               type: object-store
               description: Swift Service (radosgw)