arm64: dts: rockchip: Add rt5514 dsp for rk3399 gru

Add rt5514 dsp of_node to codec list for Gru boards.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi

@@ -514,7 +514,8 @@ max98357a: max98357a {
 	sound {
 		compatible = "rockchip,rk3399-gru-sound";
 		rockchip,cpu = <&i2s0 &i2s2>;
-		rockchip,codec = <&max98357a &headsetcodec &codec>;
+		rockchip,codec = <&max98357a &headsetcodec
+				  &codec &wacky_spi_audio>;
 	};
 };