Update build-tools to ab/3991694

Test: builds
Change-Id: I02d7d0c6ae71beb60b7a32ee923ec2e5d6bef11d
10 files changed
tree: 956be210360dfb1ae794f9d5b56124131f054378
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml