am 98c53090: move the old sensorHAL interface into a separate header

Merge commit '98c5309047d2eedfe93ac42243f9750cfeb3517e' into gingerbread-plus-aosp

* commit '98c5309047d2eedfe93ac42243f9750cfeb3517e':
  move the old sensorHAL interface into a separate header