arm: dts: imx7d-sdb: add regulator node for usb and mmc

Add regulator node for usb and mmc.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>

arch/arm/dts/imx7d-sdb.dts

@@ -38,6 +38,42 @@
 			spi-max-frequency = <100000>;
 		};
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg_usb_otg1_vbus: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "usb_otg1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
+
+		reg_usb_otg2_vbus: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "usb_otg2_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
+
+		reg_sd1_vmmc: regulator@3 {
+			compatible = "regulator-fixed";
+			regulator-name = "VDD_SD1";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+			startup-delay-us = <200000>;
+			enable-active-high;
+		};
+	};
 };
 
 &iomuxc {