build failed with WITH_GPU=ON and WITH_TESTING=ON

[Yancey1989]

libsendrecvop_grpc.a(sendrecvop_utils.cc.o): In function `paddle::operators::detail::SerializeToByteBuffer(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, paddle::framework::Variable*, paddle::platform::DeviceContext const&, grpc::ByteBuffer*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)::{lambda(void*)#2}::_FUN(void*)':
/paddle/paddle/fluid/operators/detail/sendrecvop_utils.cc:156: undefined reference to `void paddle::memory::Free<paddle::platform::CUDAPinnedPlace>(paddle::platform::CUDAPinnedPlace, void*)'
collect2: error: ld returned 1 exit status