Patch from Ben Dooks

Fix the following:
arch/arm/mach-ixp2000/pci.c:148: warning: `cli' is deprecated (declared at include/linux/interrupt.h:65)
arch/arm/mach-ixp2000/pci.c:161: warning: `sti' is deprecated (declared at include/linux/interrupt.h:69)
arch/arm/mach-ixp2000/pci.c:178: warning: `cli' is deprecated (declared at include/linux/interrupt.h:65)
arch/arm/mach-ixp2000/pci.c:191: warning: `sti' is deprecated (declared at include/linux/interrupt.h:69)
By replacing cli() wht local_irq_save() and sti() with local_irq_restore().
This patch has not been tested.

Signed-off-by: Ben Dooks
Signed-off-by: Russell King