PM: devfreq: Fix derpage

Forgot to git add. Note to self: Don't push when you're
fucking pissed about fucking useless discussions.
Linux 3.4.0-3.4.1
Linux 3.4.1-3.4.2
Linux 3.4.3
Linux 3.4.4
Linux 3.4.5

Conflicts:

	drivers/usb/host/xhci-hub.c