tweak the register macros a bit. add macros for the NIUs port registers which are useful to see whats happening on the wire.
tweak the register macros a bit. add macros for the NIUs port registers
which are useful to see whats happening on the wire.

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