drivers: sensors

Sensors : Apply ALS tuning value
Initial tuning value from AVAGO.
Change-Id: Ie91bfe2b615b539972809035fe4f4d830843eabc
Signed-off-by: chohee.park <chohee.park@lge.com>
Signed-off-by: Devin Kim <dojip.kim@lge.com>

Sensors: Apply proximity tuning value
tuning value will be getting from platform data
Change-Id: I7388718f3d82df2cda7aa1fbc0c8a39c32c0d09f
Signed-off-by: chohee.park <chohee.park@lge.com>
Signed-off-by: Devin Kim <dojip.kim@lge.com>

Sensors: Add proximity calibration for APDS9930
Add proximity calibration code. It will be used when calibrating
the proximity
Change-Id: I5dcb353dafb2d891c32b862b28e818eb8876db5c
Signed-off-by: kangsik.shin <kangsik.shin@lge.com>
Signed-off-by: Devin Kim <dojip.kim@lge.com>

Sensors: Fix the permission of apds993x nodes
sysfs nodes should not be world writeable
Change-Id: Ieb5f1b28c070feb758da1c1c7ea5a7a7adf564af
Signed-off-by: Devin Kim <dojip.kim@lge.com>

Sensors: Add Avago APDS9930 driver
Add Avago APDS9930 driver for proximity/Light sensor
Change-Id: Ifd2a6a37356e48cdc68a38c55e555222d7339c99
Signed-off-by: chohee.park <chohee.park@lge.com>
Signed-off-by: Devin Kim <dojip.kim@lge.com>

Signed-off-by: houst0nn <houstonn@gmail.com>