adds working buck file to BGPCEP provider

Change-Id: Ia4a9ee37ed57ec0862501ae9b6f622f225d764fc
diff --git a/modules.defs b/modules.defs
index 3e83f70..056d4e9 100644
--- a/modules.defs
+++ b/modules.defs
@@ -84,6 +84,7 @@
 ONOS_PROVIDERS = [
     # Providers
     '//providers/bgp:onos-providers-bgp-oar',
+    '//providers/bgpcep:onos-providers-bgpcep-oar',
     '//providers/host:onos-providers-host-oar',
     '//providers/lldp:onos-providers-lldp-oar',
     '//providers/netcfghost:onos-providers-netcfghost-oar',