ARM: dts: renesas: Synchronize R-Car R8A7794 E2 DTs with Linux 6.5.3

Synchronize R-Car R8A7794 E2 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/arch/arm/dts/r8a7794.dtsi b/arch/arm/dts/r8a7794.dtsi
index 7aa781f..371dd47 100644
--- a/arch/arm/dts/r8a7794.dtsi
+++ b/arch/arm/dts/r8a7794.dtsi
@@ -955,7 +955,7 @@
 
 		rcar_sound: sound@ec500000 {
 			/*
-			 * #sound-dai-cells is required
+			 * #sound-dai-cells is required if simple-card
 			 *
 			 * Single DAI : #sound-dai-cells = <0>;         <&rcar_sound>;
 			 * Multi  DAI : #sound-dai-cells = <1>;         <&rcar_sound N>;