Ensure keystone service is created before openrc

If puppet compiles catalog with openrc being created before
the keystone service and keystone endpoint is created it will
result in an empty service catalog. This change adds a dependency
to ensure they're created before openrc.

Change-Id: I2bac57898ae645ae578ed55d620c89b7c0dcb3d1
Closes-Bug: 1559292

manifests/endpoint.pp

@@ -110,4 +110,5 @@ class keystone::endpoint (
     project_domain      => $project_domain,
     default_domain      => $default_domain,
   }
+  Keystone::Resource::Service_identity['keystone'] ->  File<| tag == 'openrc' |>
 }