show controllerimages in Admin-Only tab in image admin
diff --git a/xos/core/admin.py b/xos/core/admin.py
index 7a20cd6..28d99fd 100644
--- a/xos/core/admin.py
+++ b/xos/core/admin.py
@@ -1256,7 +1256,7 @@
                ]
     readonly_fields = ('backend_status_text', )
 
-    suit_form_tabs =(('general','Image Details'),('instances','Instances'),('imagedeployments','Deployments'), ('controllerimages', 'Controllers'))
+    suit_form_tabs =(('general','Image Details'),('instances','Instances'),('imagedeployments','Deployments'), ('admin-only', 'Admin-Only'))
 
     inlines = [InstanceInline, ControllerImagesInline]