Update clang-tools to ab/5067893 am: 55afb0a303
am: f015f1c904

Change-Id: I8ffe93847ead3c8c832686834b4ecd9090ea74d5
tree: 31e45780cbbaf230bee40ced30b6b563cd39a70b
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml