[PATCH] MAXCPU alterable in kernel config - needs testers

[Astrodog]

With the quad core processors coming out soon, this is going to become
more of an issue.. (Sun T1/2000s aside). This is basically the same
patch from a few months ago, with updated offsets.

If you don't define MAXCPU in the kernel config, it reverts to old
behavior. It has no logic to keep you from shooting yourself in the
foot though.. you can define options SMP and options MAXCPU 128 on
arm.

--- Harrison Grundy