Changing the default 32-bit x86 arch for Fedora 12

[Bill Nottingham]

Gregory Maxwell (gmaxwell at gmail.com) said: 
> 'outside'. Please don't just dismiss these recent systems, they are a
> real issue.

According to public smolt stats:
	http://smolt.fedoraproject.org/static/stats/stats.html

only 0.38% of the userbase is non-Intel/AMD. (Number of registered systems
that report as Geode: 4.)

Bill