[LinuxBIOS] Geode GX1 system IRQ handling

[Ronald G Minnich]

Jonathan Sturges wrote:

> Granted, both of these patches were offered up as "hacks," but they 
> work, allowing the GX1 cache to be enabled and for the IRQ map to be 
> successfully copied, so I endorse them.  :-)
> 
> thanks,
> Jonathan
> 

Committed as rev 2379, builds fine, not tested; let me know.

thanks

ron