VOL-1460 Updated to use a voltha-protos repo as source for protos

Change-Id: I6e88fb3bb16f91941abaad2f0a810ebc5aa29f36
diff --git a/python/compose/adapters-openolt.yml b/python/compose/adapters-openolt.yml
index dba89cf..09aa672 100644
--- a/python/compose/adapters-openolt.yml
+++ b/python/compose/adapters-openolt.yml
@@ -29,7 +29,7 @@
       "--kafka_adapter=${DOCKER_HOST_IP}:9092",
       "--kafka_cluster=${DOCKER_HOST_IP}:9092",
       "--backend=etcd",
-      "--etcd=${DOCKER_HOST_IP}:2379"
+      "--etcd=${DOCKER_HOST_IP}:2379",
       "--core_topic=rwcore"
     ]
     networks: