ARM: dts: Add sound-card name for Snow/Peach-Pit/Peach-Pi

Add sound-card name property to Snow/Peach-Pit/Peach-Pi boards.
Signed-off-by: NTushar Behera <tushar.b@samsung.com>
Acked-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5250-snow.dts

@@ -351,6 +351,7 @@
 	sound {
 		compatible = "google,snow-audio-max98095";
 
+		samsung,model = "Snow-I2S-MAX98095";
 		samsung,i2s-controller = <&i2s0>;
 		samsung,audio-codec = <&max98095>;
 	};

arch/arm/boot/dts/exynos5420-peach-pit.dts

@@ -62,6 +62,7 @@
 	sound {
 		compatible = "google,snow-audio-max98090";
 
+		samsung,model = "Peach-Pit-I2S-MAX98090";
 		samsung,i2s-controller = <&i2s0>;
 		samsung,audio-codec = <&max98090>;
 	};

arch/arm/boot/dts/exynos5800-peach-pi.dts

@@ -60,6 +60,7 @@
 	sound {
 		compatible = "google,snow-audio-max98091";
 
+		samsung,model = "Peach-Pi-I2S-MAX98091";
 		samsung,i2s-controller = <&i2s0>;
 		samsung,audio-codec = <&max98091>;
 	};