realtek: switch RTL8231 driver for HPE 1920-16/24G

Update the base DTS file for the 16 and 24 port HPE 1920 devices
(JG923A, JG924A, JG925A, JG926A), causing the new RTL8231 MFD driver to
be loaded at start-up.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
(cherry picked from commit 9685058)

target/linux/realtek/dts/rtl8382_hpe_1920.dtsi

@@ -4,12 +4,6 @@
 #include "rtl83xx_hpe_1920.dtsi"
 
 / {
-	gpio1: rtl8231-gpio {
-		compatible = "realtek,rtl8231-gpio";
-		#gpio-cells = <2>;
-		gpio-controller;
-		indirect-access-bus-id = <0>;
-	};
 
 	i2c0: i2c-gpio-0 {
 		compatible = "i2c-gpio";
@@ -84,6 +78,24 @@
 	};
 };
 
+&mdio_aux {
+	status = "okay";
+
+	gpio1: expander@0 {
+		compatible = "realtek,rtl8231";
+		reg = <0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-ranges = <&gpio1 0 0 37>;
+
+		led-controller {
+			compatible = "realtek,rtl8231-leds";
+			status = "disabled";
+		};
+	};
+};
+
 &ethernet0 {
 	mdio: mdio-bus {
 		compatible = "realtek,rtl838x-mdio";