ARM: dts: exynos: Disable pull control for S5M8767 PMIC

S5M8767 PMIC interrupt line on Exynos5250-based Arndale board has
external pull-up resistors, so disable any pull control for it in
in controller node. This fixes support for S5M8767 interrupts and
enables operation of wakeup from S5M8767 RTC alarm.

Signed-off-by: Marek Szyprowski <[e-mail]>
Signed-off-by: Krzysztof Kozlowski <[e-mail]>

arch/arm/boot/dts/exynos5250-arndale.dts

···
 		reg = <0x66>;
 		interrupt-parent = <&gpx3>;
 		interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&s5m8767_irq>;
 
 		vinb1-supply = <&main_dc_reg>;
 		vinb2-supply = <&main_dc_reg>;
···
 	bus-width = <4>;
 	disable-wp;
 	cap-sd-highspeed;
+};
+
+&pinctrl_0 {
+	s5m8767_irq: s5m8767-irq {
+		samsung,pins = "gpx3-2";
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
 };
 
 &rtc {