Add cinder::scheduler::filter to scheduler.pp

Previously, cinder::scheduler::filter is not included in scheduler.pp.
The user needs to define scheduler_default_filter by cinder_config
though cinder::scheduler::filter provides the interface.
This change includes cinder::scheduler::filter for parameters.

Change-Id: I449ce4b07c23bc524588a85bed33eea63bbd82bf

manifests/profile/base/cinder/scheduler.pp

@@ -30,6 +30,7 @@ class tripleo::profile::base::cinder::scheduler (
 
   if $step >= 4 {
     include cinder::scheduler
+    include cinder::scheduler::filter
   }
 
 }