ARM: dts: rmobile: Sync Gen3 DTs with Linux 4.19.6

Synchronize DTs with mainline Linux 4.19.6 ,
commit 96db90800c06d3fe3fa08eb6222fe201286bb778

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
---
V2: Rebase on u-boot/master
diff --git a/arch/arm/dts/r8a7796-salvator-x.dts b/arch/arm/dts/r8a7796-salvator-x.dts
index 62aa27d..052d72a 100644
--- a/arch/arm/dts/r8a7796-salvator-x.dts
+++ b/arch/arm/dts/r8a7796-salvator-x.dts
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Device Tree Source for the Salvator-X board
+ * Device Tree Source for the Salvator-X board with R-Car M3-W
  *
  * Copyright (C) 2016 Renesas Electronics Corp.
  */
@@ -37,6 +37,11 @@
 		      "dclkin.0", "dclkin.1", "dclkin.2";
 };
 
+&sound_card {
+	dais = <&rsnd_port0	/* ak4613 */
+		&rsnd_port1>;	/* HDMI0  */
+};
+
 &hdmi0 {
 	status = "okay";
 
@@ -47,9 +52,32 @@
 				remote-endpoint = <&hdmi0_con>;
 			};
 		};
+		port@2 {
+			reg = <2>;
+			dw_hdmi0_snd_in: endpoint {
+				remote-endpoint = <&rsnd_endpoint1>;
+			};
+		};
 	};
 };
 
 &hdmi0_con {
 	remote-endpoint = <&rcar_dw_hdmi0_out>;
 };
+
+&rcar_sound {
+	ports {
+		/* rsnd_port0 is on salvator-common */
+		rsnd_port1: port@1 {
+			rsnd_endpoint1: endpoint {
+				remote-endpoint = <&dw_hdmi0_snd_in>;
+
+				dai-format = "i2s";
+				bitclock-master = <&rsnd_endpoint1>;
+				frame-master = <&rsnd_endpoint1>;
+
+				playback = <&ssi2>;
+			};
+		};
+	};
+};