x1mk2: fix leds, set to low brightness on connect
x1mk2: fix leds, set to low brightness on connect

This commit cleans up, refactors and fixes bits of the
x1 mk2 lights. Its working 100%, but the 0x81 leds are
not yet exposed to the user.

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

openAVproductions/openAV-Ctlra