arm64: dts: rockchip: connect vcca_1v8 to APIO5_VDD on rk3399-rock-4c-plus

GPIO pins for LEDs on ROCK 4C+ are in APIO5
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://lore.kernel.org/r/20220909195006.127957-1-naoki@radxa.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts

@@ -427,6 +427,7 @@ &i2s2 {
 
 &io_domains {
 	bt656-supply = <&vcc_3v0>;
+	audio-supply = <&vcca_1v8>;
 	gpio1830-supply = <&vcc_3v0>;
 	sdmmc-supply = <&vccio_sd>;
 	status = "okay";