Change x86 default arch for 4.5?

[Joel Dice]

On Fri, 19 Feb 2010, Florian Weimer wrote:

> * Tim Prince:
>
>> All CPUs still in production are at least SSE3 capable, unless someone
>> can come up with one of which I'm not aware.
>
> What about some of the AMD Geode processors?

These only support a subset of SSE1, according to 
http://wiki.laptop.org/go/Geode_instruction_set.

Here is an excerpt from /proc/cpuinfo on my Geode LX:

flags		: fpu de pse tsc msr cx8 sep pge cmov clflush mmx mmxext 3dnowext 3dnow