message: Fix Address Sanitizer issue in Conv code.
diff: @@ -430,8 +430,11 @@ TfLiteStatus Prepare(KernelType kernel_type, TfLiteContext* context,
  size_t im2col_type_size;
  TF_LITE_ENSURE_STATUS(GetSizeOfType(context, input->type, &im2col_type_size));
  - const size_t im2col_bytes = batches * out_height * out_width * channels_in *
  - filter_height * filter_width * im2col_type_size;
  + // Note that we intentionally promote the first multiplicand (i.e. 'batches')
  + // to 'size_t' to avoid integer overflow here.
  + const size_t im2col_bytes = static_cast<size_t>(batches) * out_height *
  + out_width * channels_in * filter_height *
  + filter_width * im2col_type_size;
  TF_LITE_ENSURE_STATUS(AllocateTemporaryTensorsIfRequired(
  context, node, is_hybrid, data->is_hybrid_per_channel, kernel_type,
  im2col_bytes));
  