arm: dts: phy3250: add lcd and backlight fixed regulators

Phytec PHY3250 board has GPIO controlled regulators for LCD and
backlight, add their descriptions to board DTS file.
Signed-off-by: NVladimir Zapolskiy <vz@mleia.com>

arch/arm/boot/dts/phy3250.dts

@@ -25,6 +25,28 @@
 		reg = <0x80000000 0x4000000>;
 	};
 
+	regulators {
+		backlight_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			regulator-name = "backlight_reg";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			gpio = <&gpio 5 4 0>;
+			enable-active-high;
+			regulator-boot-on;
+		};
+
+		lcd_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			regulator-name = "lcd_reg";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			gpio = <&gpio 5 0 0>;
+			enable-active-high;
+			regulator-boot-on;
+		};
+	};
+
 	ahb {
 		mac: ethernet@31060000 {
 			phy-mode = "rmii";