ARM: dts: omap: remove unneeded unit name for sound nodes

This patch fixes the following DTC warning:

"sound@0 has a unit name, but no reg property"
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am437x-gp-evm.dts

@@ -119,7 +119,7 @@ clk_32k_rtc: clk_32k_rtc {
 		clock-frequency = <32768>;
 	};
 
-	sound0: sound@0 {
+	sound0: sound0 {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "AM437x-GP-EVM";
 		simple-audio-card,widgets =

arch/arm/boot/dts/am43x-epos-evm.dts

@@ -107,7 +107,7 @@ backlight {
 		default-brightness-level = <8>;
 	};
 
-	sound0: sound@0 {
+	sound0: sound0 {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "AM43-EPOS-EVM";
 		simple-audio-card,widgets =

arch/arm/boot/dts/am57xx-beagle-x15.dts

@@ -151,7 +151,7 @@ tpd12s015_out: endpoint {
 		};
 	};
 
-	sound0: sound@0 {
+	sound0: sound0 {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "BeagleBoard-X15";
 		simple-audio-card,widgets =

arch/arm/boot/dts/am57xx-cl-som-am57x.dts

@@ -51,7 +51,7 @@ ads7846reg: fixedregulator-ads7846-reg {
 		regulator-max-microvolt = <3300000>;
 	};
 
-	sound0: sound@0 {
+	sound0: sound0 {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "CL-SOM-AM57x-Sound-Card";
 		simple-audio-card,format = "i2s";

arch/arm/boot/dts/dra7-evm.dts

@@ -67,7 +67,7 @@ vtt_fixed: fixedregulator-vtt {
 		gpio = <&gpio7 11 GPIO_ACTIVE_HIGH>;
 	};
 
-	sound0: sound@0 {
+	sound0: sound0 {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "DRA7xx-EVM";
 		simple-audio-card,widgets =

arch/arm/boot/dts/dra72-evm.dts

@@ -104,7 +104,7 @@ tpd12s015_out: endpoint {
 		};
 	};
 
-	sound0: sound@0 {
+	sound0: sound0 {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "DRA7xx-EVM";
 		simple-audio-card,widgets =

arch/arm/boot/dts/omap4-var-som-om44.dtsi

@@ -17,7 +17,7 @@ memory {
 		reg = <0x80000000 0x40000000>; /* 1 GB */
 	};
 
-	sound: sound@0 {
+	sound: sound {
 		compatible = "ti,abe-twl6040";
 		ti,model = "VAR-SOM-OM44";