am 0f2a4e60: am 6897e36b: Add comment warning to not use hardware based autobrightness support.

Merge commit '0f2a4e6026a37fc8b321494f688e9f0e5a5bf744' into eclair-mr2-plus-aosp

* commit '0f2a4e6026a37fc8b321494f688e9f0e5a5bf744':
  Add comment warning to not use hardware based autobrightness support.