Remove unnecessary 'if' macros for previous kernel versions.
After removing kernel 6.1 the kernel is always >= 6.6 so the conditions
are unnecessary.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Import driver for I2C-connected HolTek MCU controlling the RGBW LED
found in Adtran SmartRG devices.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>