PS3 patches for 2.6.27

Hi Paul,

This is a set of PS3 fixup patches for 2.6.27.

Patch 4/4, Fix ioremap of spu shadow regs, is a bit of a hack, but I can't think of a better way to get the needed protection bits.

[patch 1/4] powerpc: Fix typo in pgtable-ppc64.h [patch 2/4] powerpc/ps3: Update ps3_defconfig [patch 3/4] powerpc/ps3: Rework htab to remove ioremap [patch 4/4] powerpc/ps3: Fix ioremap of spu shadow regs

-Geoff