am 5a02de8b: am 74294808: am e6406e35: (-s ours) Check for the presence of accel and magnetometer sensors before adding AOSP fusion sensors. DO NOT MERGE

* commit '5a02de8bcca99ba5edd710eca921ad0317fe54c1':
  Check for the presence of accel and magnetometer sensors before adding AOSP fusion sensors. DO NOT MERGE