pci: change "foo* bar" to "foo *bar"

change made to resolve following checkpatch message:
    drivers/pci/pci.c:109: ERROR: "foo* bar" should be "foo *bar"
branch: Linux 3.14-rc8

Signed-off-by: Ryan Desfosses <ryan@desfo.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>