Update clang-tools to ab/4801387
am: 886b2bad8c

Change-Id: I84f6167112f8b805774f685b4d869e1b1a5c93d8
tree: b56c01b0fedd9c787b9679d5833813b38b84e747
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml