Add ::ironic::config to Ironic base profile

I have ExtraConfig settings that need to be set in
ironic.conf. Adding the ::ironic::config module
to our base Ironic profile should allow users to
customize Ironic if needed.

Change-Id: I93e9b3b5d4def1d8fa42b77b611b7d9d6cb7963b

manifests/profile/base/ironic.pp

@@ -54,6 +54,7 @@ class tripleo::profile::base::ironic (
       rabbit_hosts => $rabbit_endpoints,
     }
 
+    include ::ironic::config
     include ::ironic::cors
   }
 }