MAINTAINERS: Add include/hw/intc/i8259.h to the PC chip section

i8259.c is already listed here, so the corresponding header should
be mentioned in this section, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20231017152625.229022-1-thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

MAINTAINERS

@@ -1764,6 +1764,7 @@ F: include/hw/dma/i8257.h
 F: include/hw/i2c/pm_smbus.h
 F: include/hw/input/i8042.h
 F: include/hw/intc/ioapic*
+F: include/hw/intc/i8259.h
 F: include/hw/isa/i8259_internal.h
 F: include/hw/isa/superio.h
 F: include/hw/timer/hpet.h