Merge SPL-2019-12-05

Change-Id: I382390a5f9ad796172058070fe215e598f4c4925
tree: 848a8f4c5082540006a9c1a244758390ec7f09b9
  1. app/
  2. doc/
  3. include/
  4. libs/
  5. tests/
  6. tools/
  7. .clang-format
  8. Android.bp
  9. PREUPLOAD.cfg