Merge RP1A.200616.001

Change-Id: I531149a9c3596b6395380f7431e6d29698a5eb68
tree: 88c1c2aab87d56b4ff22ae8ad790a0227a97cc58
  1. nn/
  2. .clang-format
  3. CleanSpec.mk
  4. CPPLINT.cfg
  5. OWNERS
  6. PREUPLOAD.cfg