dt-bindings: PCI: qcom,pcie-sm8550: Add SAR2130P compatible

On the Qualcomm SAR2130P platform the PCIe host is compatible with the
DWC controller present on the SM8550 platorm, just using one additional
clock.

Link: https://lore.kernel.org/r/20241017-sar2130p-pci-v1-1-5b95e63d9624@linaro.org


Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>