ARM i.MX boards: use CONFIG_MULTI_IRQ_HANDLER

Also, add handle_irq callbacks to machine descriptors.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-imx/mach-mxt_td60.c b/arch/arm/mach-imx/mach-mxt_td60.c
index c85876f..d01a92f 100644
--- a/arch/arm/mach-imx/mach-mxt_td60.c
+++ b/arch/arm/mach-imx/mach-mxt_td60.c
@@ -271,6 +271,7 @@
 	.map_io = mx27_map_io,
 	.init_early = imx27_init_early,
 	.init_irq = mx27_init_irq,
+	.handle_irq = imx27_handle_irq,
 	.timer = &mxt_td60_timer,
 	.init_machine = mxt_td60_board_init,
 MACHINE_END