message: lite: nnapi: Fix fd leak in NNMemory's destructor
  Valid fd values are non-negative, including zero.
diff: @@ -676,7 +676,7 @@ NNMemory::~NNMemory() {
  if (nn_memory_handle_) {
  nnapi_->ANeuralNetworksMemory_free(nn_memory_handle_);
  }
  - if (fd_ > 0) close(fd_);
  + if (fd_ >= 0) close(fd_);
  #endif
  }
  