Enable building odtn app

Change-Id: Ib49ef67a2ec5e24c0972ada6c7ab9a735ecd11e2
diff --git a/modules.bzl b/modules.bzl
index 223c241..bbbc246 100644
--- a/modules.bzl
+++ b/modules.bzl
@@ -112,7 +112,7 @@
     "//drivers/gnmi:onos-drivers-gnmi-oar",
     "//drivers/polatis/netconf:onos-drivers-polatis-netconf-oar",
     "//drivers/polatis/openflow:onos-drivers-polatis-openflow-oar",
-    #"//drivers/odtn-driver:onos-drivers-odtn-driver-oar",
+    "//drivers/odtn-driver:onos-drivers-odtn-driver-oar",
 ]
 
 ONOS_PROVIDERS = [