arm64: dts: qcom: qcs404: register PCIe PHY as a clock provider

Add #clock-cells to the pcie_phy node. It provides a PCIe PIPE clock.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221226031059.2563165-4-dmitry.baryshkov@linaro.org