libsensors: adjust BMA250 sensor for new i2c sysfs location + changes to coexist with other sensors

Change-Id: I17be25e1eb2517cedd4666aa8f85d9a93e9d3d92
libsensors: add SensorTek ALS22x7 light sensor

Change-Id: I1c1d49b167113981d496da2d4493f0d60bf89acc
overlay: setup light levels for auto brightness

Change-Id: Iad5b1661581e655a65be33cff27b7b0599daf8bc
Merge remote-tracking branch 'cm/cm-10.1' into cm-10.1