added src dir to protobuf soft description (needed for Caffe2)
added src dir to protobuf soft description (needed for Caffe2)

ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env