Merge "core: config: Update the description of the autoBrightnessLevels array." into jb-mr1-dev

    <!-- Array of light sensor LUX values to define our levels for auto backlight brightness support.

         The N entries of this array define N + 1 control points as follows:

         (1-based arrays)

         Point 1:        LUX <= 0 (implicit)

         Point 2:        0 < level[1] == LUX < level[2]

         Point 1:            (0, value[1]):             lux <= 0

         Point 2:     (level[1], value[2]):  0        < lux <= level[1]

         Point 3:     (level[2], value[3]):  level[2] < lux <= level[3]

         ...

         Point N:        level[N - 1] == LUX < level[N]

         Point N + 1:    level[N] <= LUX < infinity

         Point N+1: (level[N], value[N+1]):  level[N] < lux

         The control points must be strictly increasing.  Each control point

         corresponds to an entry in the brightness backlight values arrays.

         For example, if LUX == level[1] (first element of the levels array)

         then the brightness will be determined by value[1] (first element

         then the brightness will be determined by value[2] (second element

         of the brightness values array).

         Spline interpolation is used to determine the auto-brightness