This makes the PIO support in the 8250 driver completely
conditional on CONFIG_HAS_IOPORT so we can remove the bogus
definitions from all the places that only need them for 8250.

NAK this as last time.

We had a discussion about how to fix this properly. I even posted some
sketched out patches to show how it could be addressed

Shotgunning the code with ifdefs was not that.


Get the port methods out of the core code as was proposed.