arm64: dts: rockchip: Use a readable audio card name on NanoPi M5

'simple-audio-card,name' ends up in user visible places such as ALSA mixer
names, so use a more human-readable name instead of realtek,rt5616-codec

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://patch.msgid.link/20251229-rk3576-sound-v1-3-2f59ef0d19b1@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: alchark

arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts

@@ -220,7 +220,7 @@
 		simple-audio-card,format = "i2s";
 		simple-audio-card,hp-det-gpios = <&gpio2 RK_PD6 GPIO_ACTIVE_LOW>;
 		simple-audio-card,mclk-fs = <256>;
-		simple-audio-card,name = "realtek,rt5616-codec";
+		simple-audio-card,name = "Onboard Analog RT5616";
 
 		simple-audio-card,routing =
 			"Headphones", "HPOL",