fix variable misnaming

Change-Id: Ifeced965695d4b224c8cd38d6d31186964cc97a8
diff --git a/maas/region.sls b/maas/region.sls
index dbe2ff8..1ef61ec 100644
--- a/maas/region.sls
+++ b/maas/region.sls
@@ -155,7 +155,7 @@
 # Currently - api always throw 405=>500 even if request has been made with 'expected 'HEAD
 #}
   - url: "http://localhost:5240/MAAS"
-  - wait_for: [200, 405]
+  - expected: [200, 405]
   - require_in:
     - module: maas_set_admin_password
   {%- if grains.get('kitchen-test') %}