ARM: digicolor: add pinctrl module device node

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/cx92755.dtsi

@@ -95,6 +95,13 @@ watchdog@f0000fc0 {
 		timeout-sec = <15>;
 	};
 
+	pinctrl: pinctrl@f0000e20 {
+		compatible = "cnxt,cx92755-pinctrl";
+		reg = <0xf0000e20 0x100>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
 	uc_regs: syscon@f00003a0 {
 		compatible = "cnxt,cx92755-uc", "syscon";
 		reg = <0xf00003a0 0x10>;