The PinePhone Pro has a cluster of 3 single RGB GPIO LEDs.
Add the GPIO entries for the 3 red/green/blue LEDs and an
entry for the multi-color group to allow them to be used
as a combined RGB LED.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Link: https://lore.kernel.org/r/20240623165326.1273944-1-pbrobinson@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>