arm: dts: vt8500: Update Wondermedia SoC dtsi files for pinctrl driver

This patch adds pinctrl nodes to the VIA VT8500 and Wondermedia SoC dtsi
files to support the pinctrl driver.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/boot/dts/wm8505.dtsi b/arch/arm/boot/dts/wm8505.dtsi
index e74a1c0..e4f768a 100644
--- a/arch/arm/boot/dts/wm8505.dtsi
+++ b/arch/arm/boot/dts/wm8505.dtsi
@@ -47,6 +47,15 @@
 			#gpio-cells = <3>;
 		};
 
+		pinctrl: pinctrl@d8110000 {
+			compatible = "wm,wm8505-pinctrl";
+			reg = <0xd8110000 0x10000>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+
 		pmc@d8130000 {
 			compatible = "via,vt8500-pmc";
 			reg = <0xd8130000 0x1000>;