Allow building third-party apps based on gRPC

By publishing the repackaged grpc and protobuf artifacts

Change-Id: Ib3af7dba4f64948132aa70be31922de61d6f6ab2
diff --git a/protocols/grpc/api/BUILD b/protocols/grpc/api/BUILD
index 55e2b4a..5a2b2d7 100644
--- a/protocols/grpc/api/BUILD
+++ b/protocols/grpc/api/BUILD
@@ -1,3 +1,3 @@
 osgi_jar(
-    deps = CORE_DEPS + ["@io_grpc_grpc_java//core"],
+    deps = CORE_DEPS + ["//lib:io_grpc_grpc_core_context"],
 )