awt: Fix Constraint_Error in Set_LED
awt: Fix Constraint_Error in Set_LED

If Brightness is greater than the largest color in Color, then
Max_Brightness will not be in the range of Normalized. Use 'Base
attribute to avoid raising a Constraint_Error.

Signed-off-by: onox <34c1d3d2d1347bea60a26f46574de21a7a79b6d5@gmail.com>

onox/orka