arm64: dts: rockchip: Add io-domains to rk3308-rock-pi-s

The VCCIO4 io-domain used for WiFi/BT is using 1v8 IO signal voltage.

Add io-domains node with the VCCIO supplies connected on the board.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20240521211029.1236094-13-jonas@kwiboo.seSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts

@@ -223,6 +223,16 @@ &i2c1 {
 	status = "okay";
 };
 
+&io_domains {
+	vccio0-supply = <&vcc_io>;
+	vccio1-supply = <&vcc_io>;
+	vccio2-supply = <&vcc_io>;
+	vccio3-supply = <&vcc_io>;
+	vccio4-supply = <&vcc_1v8>;
+	vccio5-supply = <&vcc_io>;
+	status = "okay";
+};
+
 &pinctrl {
 	pinctrl-names = "default";
 	pinctrl-0 = <&rtc_32k>;