msm7x30: Adjust ALS values

Most users reported max value of ~12276 lux from their sensor
Adjust the array according to the max value
Lower minimum brightness from 70 to 10 to solve the bug: screen very bright even on lowest setting when using manual brightness

Change-Id: I83b2cd78bec4d0156cf5d804f775a0d5b60ab7f5
Signed-off-by: Michael Bestas <mikeioannina@gmail.com>
Update variant flag