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