am d92cc9a4: Merge change I33eb64c0 into eclair

Merge commit 'd92cc9a4ba2cf38f133cc2b51fe1cd0be8659db9' into eclair-plus-aosp

* commit 'd92cc9a4ba2cf38f133cc2b51fe1cd0be8659db9':
  docs: add 2.1 platform notes, win usb driver notes