Merge changes from topic "nnapi-cherrypick-from-master-and-pi-dev-to-aosp"
am: 19d69db774

Change-Id: I4e5cc23d6eb04b0089cafbaae6b3ddc8440ddf9d
tree: 0b03802ca11f6e6a4b79fddf038286fe5ceddfd5
  1. nn/
  2. .clang-format
  3. CleanSpec.mk
  4. OWNERS
  5. PREUPLOAD.cfg