arm: omap: irq: call set_handle_irq() from intc_of_init

this will let us drop .handle_irq and .init_irq fields
from our generic machine_descs.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/irq.c

@@ -314,6 +314,8 @@ static int __init intc_of_init(struct device_node *node,
 
 	omap_init_irq(res.start, nr_irq, of_node_get(node));
 
+	set_handle_irq(omap2_intc_handle_irq);
+
 	return 0;
 }