add grpc++_codegen_proto to bazelfile as well
diff --git a/BUILD b/BUILD
index 58971ff..5ef7bf8 100644
--- a/BUILD
+++ b/BUILD
@@ -140,6 +140,7 @@
         "grpc++_base",
         "grpc++_codegen_base",
         "grpc++_codegen_base_src",
+        "grpc++_codegen_proto",
     ],
 )