Add the missing PCIe4 perst, wake and clkreq GPIOs and pin config.

Fixes: 45247fe1 ("arm64: dts: qcom: x1e80100: add Lenovo Thinkpad Yoga slim 7x devicetree")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240722095459.27437-13-johan+linaro@kernel.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>