I noticed a kluge had been put into 2.5.35, to cover up *one* of the
errors caused by a particular bug that was introduced when Patrick
Mochel split up arch/i386/kernel/setup.c: he incorrectly thought the
AMD-defined CPUID levels were AMD-specific; they're not -- every other
x86 vendors *including* Intel uses them as well.

This also adds the "i686" hack for TM5xxx that was added in 2.4 recently.