romcc fixes for AMD64

[Stefan Reinauer]

* ron minnich <rminnich at lanl.gov> [030916 16:19]:
> I think maybe when we start putting > 4 GB memory on these machines, I 
> don't know how we're going to zero memory absent a true 64-bit C payload.

This could be done using the Opterons PAE feature. Currently I see a
tradeoff between LinuxBIOS image size and the design conflict when going
away from 16bit firmware on 32bit systems while staying with 32bit on
a 64bit platform.

  Stefan
-- 
Architecture Team
    SuSE Linux AG