x86/non-x86: percpu, node ids, apic ids x86.git fixup

[Luck, Tony]

> ah, that was the vital clue. The patch below makes the small memory 
> model only defined on SMP, and makes the config build/link fine here. 
> Does this build and boot on your box?

I applied this on top of the git pull from
 git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git

and I see see a build problem for SMP=n :-(

-Tony