Add the multicolor description and enable the PMI8998 LPG to expose the
RGB notification LED.
Signed-off-by: Konrad Dybcio <konradybcio@kernel.org>
Link: https://lore.kernel.org/r/20240316-topic-maple_led-v1-1-ca3430fd9dc5@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>