ahci.c: fix CONFIG_PM=n compilation

Commit df69c9c5438b4e396a64d42608b2a6c48a3e7475 moved only prototype of
out of CONFIG_PM. Move function out as well. Box seems to boot fine.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
1 file changed