Improve Sensors documentation a bit
Improve Sensors documentation a bit

Change-Id: I6f4f9ebfaf1e7f461a795f717b9913e3a021e9d4

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base