message: Clarify default Interpreter NNAPI behavior
diff: @@ -364,7 +364,11 @@ class Interpreter {
  /// Returns status of success or failure.
  TfLiteStatus Invoke();
  - /// Enable or disable the NN API (true to enable)
  + /// Enable or disable NNAPI (true to enable). Disabled by default.
  + ///
  + /// WARNING: NNAPI cannot be disabled after the graph has been prepared
  + /// (via `AllocateTensors`) with NNAPI enabled.
  + ///
  /// NOTE: This API is deprecated, prefer using the NNAPI delegate directly.
  /// This method will be removed in a future release.
  void UseNNAPI(bool enable);
  