am bc45fcbb: am 205d1c34: cherrypicking tools and adt r12 relnotes from hc-mr1 Change-Id: I0ea492417581c062f6433e23345fe3fe398709c0

* commit 'bc45fcbb44fb6af0e99446c0e56eba8238de9e90':
  cherrypicking tools and adt r12 relnotes from hc-mr1 Change-Id: I0ea492417581c062f6433e23345fe3fe398709c0