arm64: dts: qcom: sm8550-qrd: enable Touchscreen

Add Goodix Berlin touchscreen controller node for the SM8550 QRD
connected to the SPI4 controller.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240131-topic-sm8550-upstream-qrd8550-touch-v1-1-007f61158aa8@linaro.org


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