message: Add NNAPI CPU option is disabled by default for Android 10 or above and what developer can do to override it.
diff: @@ -165,5 +165,14 @@ NNAPI acceleration is also not supported when the model contains
  dynamically-sized outputs. In this case, you will get a warning like:
  ```none
  -ERROR: Attempting to use a delegate that only supports static-sized tensors with a graph that has dynamic-sized tensors.
  +ERROR: Attempting to use a delegate that only supports static-sized tensors \
  +with a graph that has dynamic-sized tensors.
  ```
  +
  +### Enable NNAPI CPU implementation
  +
  +A graph that can't be processed completely by an accelerator can fall back to
  +the NNAPI CPU implementation. However, since this is typically less performant
  +than the TensorFlow interpreter, this option is disabled by default in the NNAPI
  +delegate for Android 10 (API Level 29) or above. To override this behavior, set
  +`setUseNnapiCpu` to `true` in the `NnApiDelegate.Options` object.
  