[coreboot] legacybios update

[Rudolf Marek]

> Anyone willing to try the above on real hardware?  :-)

Please pack source of snapshot too. I can try on monday on my Desktop system 
where I use Coreboot. I need to get booting from sata working so perhaps I need 
to hack the IO ports so it boots ;)

(my sata controller is legacy compatible so everything I need is to adjust IO 
base of IDE controller in sata)

Rudolf