message: fix: register the torch_fallback attribute in Python API
diff: @@ -115,7 +115,8 @@ PYBIND11_MODULE(_C, m) {
  .def_readwrite("num_min_timing_iters", &CompileSpec::num_min_timing_iters)
  .def_readwrite("num_avg_timing_iters", &CompileSpec::num_avg_timing_iters)
  .def_readwrite("workspace_size", &CompileSpec::workspace_size)
  - .def_readwrite("max_batch_size", &CompileSpec::max_batch_size);
  + .def_readwrite("max_batch_size", &CompileSpec::max_batch_size)
  + .def_readwrite("torch_fallback", &CompileSpec::torch_fallback);
  py::class_<Device>(m, "Device")
  .def(py::init<>())
  