ARM: dts: qcom: Use "pcie" as the node name instead of "pci"

Qcom SoCs doesn't support the legacy PCI, but only PCIe. So use the correct
node name for the controller instances.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20231206135540.17068-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>