pinctrl/nomadik: pass DT node to the irqdomain

When creating the simple irqdomain, pass the DT node pointer along,
as is apropriate.
Acked-by: Lee Jones <lee.jones@linaro.org>
Reported-by: Gabriel Fernandez <gabriel.fernandez@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-nomadik.c

@@ -1387,7 +1387,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)
 
 	if (!np)
 		irq_start = NOMADIK_GPIO_TO_IRQ(pdata->first_gpio);
-	nmk_chip->domain = irq_domain_add_simple(NULL,
+	nmk_chip->domain = irq_domain_add_simple(np,
 				NMK_GPIO_PER_CHIP, irq_start,
 				&nmk_gpio_irq_simple_ops, nmk_chip);
 	if (!nmk_chip->domain) {