Allow machdep code to decide the order in which we probe the pci buses. this is conditional on __PCI_BUS_DEVORDER and __PCI_DEV_FUNCORDER Used by sparc64.
Allow machdep code to decide the order in which we probe the
pci buses. this is conditional on __PCI_BUS_DEVORDER and __PCI_DEV_FUNCORDER
Used by sparc64.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars