mips merged into 8-STABLE

[Jayachandran C.]

Hi all,

I've merged MIPS to 8-STABLE, currently just XLR works, but I think
most other platforms can be made to work with minor fixes.

To get octeon platform working we need to MFC some toolchain changes.
I'll have a look at this if nobody volunteers. The mips/mips/tick.c is
still missing some changes from -CURRENT.

Please checkout stable/8 and let me know if you find any issues. Many
thanks goes to alc@ and kib@ for reviews of the non-MIPS bits and
merge approval.

JC.