FWIW, port and hook in the urio(4) storage driver.

Taken-from: FreeBSD
Remove some obsolete manpages (from oldusb).
kernel/usb4bsd: Remove no longer needed dependencies on 'usb' in 'files'.

We used it (along with 'oldusb') to differentiate between the former
USB stack and USB4BSD. This is no longer necessary now.
kernel/usb4bsd: Change a pointer back to NULL.