[LinuxBIOS] alix1c patch for irq.

[ron minnich]

With this patch, I think the IRQ situation is basically fixed, though
Ingmar may not agree once he tests it.

i would like to try to standardize on these cards for V3 porting. They
are cheap, the vendor support is great (AMD and PC Engines), and they
are easy to debug. I'd like to see if those of you working on v3 could
take a look at this card. V3 is going to go lots faster if we are on
common hardware.

ron