Update build-tools to ab/4822804
am: fb39e2208c

Change-Id: Ia2101760257e2fade8fadb7d9bd03fa88740995c
tree: ef35ba77f853d608696a66d42c42a8e76459cb68
  1. common/
  2. darwin-x86/
  3. linux-x86/
  4. build-prebuilts.sh
  5. manifest.xml
  6. OWNERS