arm64: dts: meson-axg: fix dtc warning about unit address

section 2.2.1 of the DT specs says: " If the node has no reg property,
the @unit-address must be omitted and the node-name alone differentiates
the node from other nodes at the same level in the tree"

Simply replace the '@' with a '-' to fix this warning.

Cc: Fabio Estevam <festevam@gmail.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-axg-s400.dts

@@ -60,7 +60,7 @@ aliases {
 		serial1 = &uart_A;
 	};
 
-	linein: audio-codec@0 {
+	linein: audio-codec-0 {
 		#sound-dai-cells = <0>;
 		compatible = "everest,es7241";
 		VDDA-supply = <&vcc_3v3>;
@@ -70,7 +70,7 @@ linein: audio-codec@0 {
 		sound-name-prefix = "Linein";
 	};
 
-	lineout: audio-codec@1 {
+	lineout: audio-codec-1 {
 		#sound-dai-cells = <0>;
 		compatible = "everest,es7154";
 		VDD-supply = <&vcc_3v3>;
@@ -79,14 +79,14 @@ lineout: audio-codec@1 {
 		sound-name-prefix = "Lineout";
 	};
 
-	spdif_dit: audio-codec@2 {
+	spdif_dit: audio-codec-2 {
 		#sound-dai-cells = <0>;
 		compatible = "linux,spdif-dit";
 		status = "okay";
 		sound-name-prefix = "DIT";
 	};
 
-	dmics: audio-codec@3 {
+	dmics: audio-codec-3 {
 		#sound-dai-cells = <0>;
 		compatible = "dmic-codec";
 		num-channels = <7>;
@@ -272,31 +272,31 @@ sound {
 				       <393216000>;
 		status = "okay";
 
-		dai-link@0 {
+		dai-link-0 {
 			sound-dai = <&frddr_a>;
 		};
 
-		dai-link@1 {
+		dai-link-1 {
 			sound-dai = <&frddr_b>;
 		};
 
-		dai-link@2 {
+		dai-link-2 {
 			sound-dai = <&frddr_c>;
 		};
 
-		dai-link@3 {
+		dai-link-3 {
 			sound-dai = <&toddr_a>;
 		};
 
-		dai-link@4 {
+		dai-link-4 {
 			sound-dai = <&toddr_b>;
 		};
 
-		dai-link@5 {
+		dai-link-5 {
 			sound-dai = <&toddr_c>;
 		};
 
-		dai-link@6 {
+		dai-link-6 {
 			sound-dai = <&tdmif_c>;
 			dai-format = "i2s";
 			dai-tdm-slot-tx-mask-2 = <1 1>;
@@ -317,7 +317,7 @@ codec@2 {
 
 		};
 
-		dai-link@7 {
+		dai-link-7 {
 			sound-dai = <&spdifout>;
 
 			codec {
@@ -325,7 +325,7 @@ codec {
 			};
 		};
 
-		dai-link@8 {
+		dai-link-8 {
 			sound-dai = <&pdm>;
 
 			codec {

arch/arm64/boot/dts/amlogic/meson-axg.dtsi

@@ -20,7 +20,7 @@ / {
 	#address-cells = <2>;
 	#size-cells = <2>;
 
-	tdmif_a: audio-controller@0 {
+	tdmif_a: audio-controller-0 {
 		compatible = "amlogic,axg-tdm-iface";
 		#sound-dai-cells = <0>;
 		sound-name-prefix = "TDM_A";
@@ -31,7 +31,7 @@ tdmif_a: audio-controller@0 {
 		status = "disabled";
 	};
 
-	tdmif_b: audio-controller@1 {
+	tdmif_b: audio-controller-1 {
 		compatible = "amlogic,axg-tdm-iface";
 		#sound-dai-cells = <0>;
 		sound-name-prefix = "TDM_B";
@@ -42,7 +42,7 @@ tdmif_b: audio-controller@1 {
 		status = "disabled";
 	};
 
-	tdmif_c: audio-controller@2 {
+	tdmif_c: audio-controller-2 {
 		compatible = "amlogic,axg-tdm-iface";
 		#sound-dai-cells = <0>;
 		sound-name-prefix = "TDM_C";