arm: Fold irq_set_chip/irq_set_handler

Use irq_set_chip_and_handler() instead. Converted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index 8512b79..4615528 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -511,8 +511,8 @@
 			 * Can use the "simple" and not "edge" handler since it's
 			 * shorter, and the AIC handles interrupts sanely.
 			 */
-			irq_set_chip(pin, &gpio_irqchip);
-			irq_set_handler(pin, handle_simple_irq);
+			irq_set_chip_and_handler(pin, &gpio_irqchip,
+						 handle_simple_irq);
 			set_irq_flags(pin, IRQF_VALID);
 		}