am 2b9a0444: Merge "Add etc1tool to Windows SDK." into eclair

Merge commit '2b9a0444eaa9a3ba3e527990babb6a44f1ae5739' into eclair-plus-aosp

* commit '2b9a0444eaa9a3ba3e527990babb6a44f1ae5739':
  Add etc1tool to Windows SDK.