Fix trivial typo in the drivers/pci/hotplug/ibmphp_core.c changes.

[ Impact: build fix ]
Signed-off-by: NCyrill Gorcunov <gorcunov@openvz.org>
CC: Yinghai Lu <yinghai@kernel.org>
Cc: eswierk@aristanetworks.com
LKML-Reference: <20090512145128.GA10220@lenovo>
Signed-off-by: NIngo Molnar <mingo@elte.hu>