arm64: dts: qcom: msm8916-longcheer-l8150: Add notification LED

L8150 uses aw2013 LED contriller for notification LED on the front
of the device. Add it to the device tree

Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Nikita Travkin <nikitos.tr@gmail.com>
Link: https://lore.kernel.org/r/20201113175917.189123-5-nikitos.tr@gmail.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>