dt-bindings: PCI: qcom-ep: Add SAR2130P compatible

dt-bindings: PCI: qcom-ep: Add SAR2130P compatible

Add support for using the PCI controller in the PCIe Endpoint mode on
the SAR2130P platform.

This is needed, as it is not possible to use a compatible fallback on
any other platform since SAR2130P uses slightly different set of clocks.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250221-sar2130p-pci-v3-5-61a0fdfb75b4@linaro.org
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>