arm64: dts: qcom: sm8450-qrd: enable PCIe0 host

Enable PCIe0 host on SM8450 QRD device.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220301061500.2110569-7-dmitry.baryshkov@linaro.org