linux-powerpc "master" going to be rebased

[Benjamin Herrenschmidt]

Just a little warning...

I mistakenly did the same merge twice in "next" and "master" resulting
in those two branches now drifting for ever which they shouldn't.

I'm not going to rebase "next" as I pretty much promised, so I'm going
to rebase "master" to point to the same commit as "next".

I'll do that sometimes tomorrow.

Cheers,
Ben.