am 4ec14c1e: add new sensor types for handling gyro data and device orientation more efficiently.

Merge commit '4ec14c1e233bbc0c7c7efe990f2fafe9727179ca' into gingerbread-plus-aosp

* commit '4ec14c1e233bbc0c7c7efe990f2fafe9727179ca':
  add new sensor types for handling gyro data and device orientation more efficiently.