arm64: dts: qcom: Add configuration for PMI8950 peripheral

The PMI8950 features integrated peripherals like ADC, GPIO controller,
MPPs and others.

[luca@z3ntu.xyz: remove pm8950, style changes for 2022 standards, add wled]

Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221101161801.1058969-2-luca@z3ntu.xyz