[PATCH] bk - fix oprofile for pm driver register

[PATCH] bk - fix oprofile for pm driver register

OK, so I screwed up - didn't notice the late_initcall() that was
introduced, which was obviously bogus. This one should build OK for the
module case. I've tested insmod/rmmod alongside a mounted sysfs.

I think the built-in case is OK: oprofile/ is after kernel/ in the link
order. I tested that too.