Update build-tools to ab/4051621

Re-introduce local warnings generated by header-abi-diff.

Bug: 32750600

Test: make -j64

Test: Generated reference abi dump for libjpeg. Added a function to libjpeg.
header-abi-diff generated a local warning message specifying the abi was
extended.

Change-Id: Ifbfba75f8f550eebdd3df3f5bcf66387f8341170
14 files changed
tree: 99e76231fab7582e6952ca8dc170d04f857822de
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml