[ONOS-5588] buck file added for yms app.

Change-Id: Ieb409382ece469afcd63ce4791b45d29d31c3f3e
diff --git a/modules.defs b/modules.defs
index 99bbbce..4011227 100644
--- a/modules.defs
+++ b/modules.defs
@@ -165,6 +165,7 @@
     '//apps/scalablegateway:onos-apps-scalablegateway-oar',
     '//apps/patchpanel:onos-apps-patchpanel-oar',
     '//apps/castor:onos-apps-castor-oar',
+    '//apps/yms:onos-apps-yms-oar',
 ]
 
 APP_JARS = [