Update scale and zeroPoint documentation am: c637d99357 am: ba32519aa6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/ml/+/12070382

Change-Id: I0745e23e932dd0b3d923490599e1ebc45a150705
tree: e670787d3ce5016bef9198ab79a97a25a0620403
  1. nn/
  2. .clang-format
  3. CleanSpec.mk
  4. CPPLINT.cfg
  5. OWNERS
  6. PREUPLOAD.cfg