- interrupt-map-mask and interrupt-map: standard PCI properties
Optional Property:
+- aspm-no-l0s: RC won't support ASPM L0s. This property is needed if
+ using 24MHz OSC for RC's PHY.
- ep-gpios: contain the entry for pre-reset gpio
- num-lanes: number of lanes to use
- vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe.