ansible lint clean up

Change-Id: Ia77f90d83998a0569500c39a3bd701b16a63d682
diff --git a/ansible/roles/prod/tasks/main.yml b/ansible/roles/prod/tasks/main.yml
index 2599096..1cd9f61 100644
--- a/ansible/roles/prod/tasks/main.yml
+++ b/ansible/roles/prod/tasks/main.yml
@@ -14,4 +14,5 @@
 
 - name: Ensure Management Bridge Up
   command: ifup mgmtbr
+  changed_when: true