Call the new ohci_checkrev function on xscale, otherwise the USB version is not set correctly and the USB bus does not attach.
Call the new ohci_checkrev function on xscale, otherwise the USB version
is not set correctly and the USB bus does not attach.

Tested ckuethe@

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