ARM: dts: qcom: sdx55: Rename pcie0_{phy/lane} to pcie_{phy/lane}

There is only one PCIe PHY in this SoC, so there is no need to add an
index to the suffix. This also matches the naming convention of the PCIe
controller.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230308082424.140224-7-manivannan.sadhasivam@linaro.org