maschine3: fix light colour for abcdefgh buttons
maschine3: fix light colour for abcdefgh buttons

Previously, they were treated as a single brightness LED,
now the colour corresponds to the look up table method as
per pads and other colour-enabled LEDs.

Signed-off-by: Harry van Haaren <6e1296516ee88185cd60d9725251227ece1af74d@gmail.com>

openAVproductions/openAV-Ctlra