CORD-1467: Developing service models without attics

Change-Id: I94b4a62a5db547bfe92f25041b88b58942dc5c39
diff --git a/xos/vrouter.xproto b/xos/vrouter.xproto
index b816307..3a91d9d 100644
--- a/xos/vrouter.xproto
+++ b/xos/vrouter.xproto
@@ -1,6 +1,7 @@
 option kind="vROUTER";
 option name="vrouter";
 option verbose_name="vRouter Service";
+option legacy="True";
 
 message VRouterService (Service){
      optional string rest_hostname = 1 [db_index = False, max_length = 255, null = True, content_type = "stripped", blank = True];