x86: Add dummy mp_save_irq()

This is a dummy function, used when no IOAPIC is compiled in.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
LKML-Reference: <1298385487-4708-2-git-send-email-henne@nachtwindheim.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
1 file changed