ARM: pxa: enable MULTI_IRQ_HANDLER for all boards

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index e5e326d..8f97e15 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -441,6 +441,7 @@
 	.map_io		= pxa3xx_map_io,
 	.nr_irqs	= LITTLETON_NR_IRQS,
 	.init_irq	= pxa3xx_init_irq,
+	.handle_irq	= pxa3xx_handle_irq,
 	.timer		= &pxa_timer,
 	.init_machine	= littleton_init,
 MACHINE_END