With interrupt remapping a special function is used to
change the affinity of an IO-APIC interrupt. Abstract this
with a function pointer.
Signed-off-by: NJoerg Roedel <joro@8bytes.org>
Acked-by: NSebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>