Sensor: load calibration data at boot

JIRA: MARVIN-79

Load sensors calibration data at boot, and set the corresponding offset of IIO channels
to calibrate raw data of sensors

Change-Id: Iaf5842fd46edd8445a0a2ba03e765fa82a4f0519
Signed-off-by: Fei Li <feix.f.li@intel.com>
Reviewed-on: https://android.intel.com/379867
Reviewed-by: jenkins_ndg <jenkins_ndg@intel.com>
Reviewed-by: Marcenac, GuillaumeX <guillaumex.marcenac@intel.com>
Reviewed-by: Tasayco Loarte, VictorX <victorx.tasayco.loarte@intel.com>
Reviewed-by: Maalem, Saadi <saadi.maalem@intel.com>
Reviewed-by: Yan, Like <like.yan@intel.com>
Tested-by: Yan, Like <like.yan@intel.com>
7 files changed
tree: 40db9f2ec55004a82b3c701af3248917f24cf6ec
  1. als/
  2. libsensors_iio/
  3. tilt/
  4. Android.mk