dts:exynos:update pinctrl size-cells and fix child regs

This change is required to avoid warnings about invalid
size-cells defined in device-tree pinctrl nodes for Exynos.

Tested on:
- Odroid U3
- Odroid XU3

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/dts/exynos4210-pinctrl-uboot.dtsi b/arch/arm/dts/exynos4210-pinctrl-uboot.dtsi
index 0ff41d0..b76c77d 100644
--- a/arch/arm/dts/exynos4210-pinctrl-uboot.dtsi
+++ b/arch/arm/dts/exynos4210-pinctrl-uboot.dtsi
@@ -9,21 +9,21 @@
 /{
 	pinctrl_0: pinctrl@11400000 {
 		#address-cells = <1>;
-		#size-cells = <0>;
+		#size-cells = <1>;
 		compatible = "samsung,exynos4210-pinctrl";
 	};
 
 	pinctrl_1: pinctrl@11000000 {
 		#address-cells = <1>;
-		#size-cells = <0>;
+		#size-cells = <1>;
 		gpx0: gpx0 {
-			reg = <0xc00>;
+			reg = <0xc00 0x20>;
 		};
 	};
 
 	pinctrl_2: pinctrl@03860000 {
 		#address-cells = <1>;
-		#size-cells = <0>;
+		#size-cells = <1>;
 	};
 
 };