arm64: dts: rockchip: add io domain setting to rk3566-box-demo

Add the missing pmu_io_domains setting, the gmac can't work well
without this.

Fixes: 2e0537b1 ("arm64: dts: rockchip: Add dts for rockchip rk3566 box demo board")
Signed-off-by: Andy Yan <andyshrk@163.com>
Link: https://lore.kernel.org/r/20221229115043.3899733-1-andyshrk@163.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts

@@ -353,6 +353,17 @@ led_work_en: led_work_en {
 	};
 };
 
+&pmu_io_domains {
+	pmuio2-supply = <&vcc_3v3>;
+	vccio1-supply = <&vcc_3v3>;
+	vccio3-supply = <&vcc_3v3>;
+	vccio4-supply = <&vcca_1v8>;
+	vccio5-supply = <&vcc_3v3>;
+	vccio6-supply = <&vcca_1v8>;
+	vccio7-supply = <&vcc_3v3>;
+	status = "okay";
+};
+
 &pwm0 {
 	status = "okay";
 };