arm64: dts: renesas: r8a7796: remove unneeded sound #address/size-cells

commit 78bc93b3 ("arm64: dts: renesas: r8a7796: Add address
properties to rcar_sound port nodes") added missing #address-cells
and #size-cells for sound ports.
But, these are based on platform, not on SoC. This patch cleanups it.
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts

@@ -68,6 +68,7 @@ &rcar_sound {
 	ports {
 		/* rsnd_port0 is on salvator-common */
 		rsnd_port1: port@1 {
+			reg = <1>;
 			rsnd_endpoint1: endpoint {
 				remote-endpoint = <&dw_hdmi0_snd_in>;
 

arch/arm64/boot/dts/renesas/r8a7796-salvator-xs.dts

@@ -68,6 +68,7 @@ &rcar_sound {
 	ports {
 		/* rsnd_port0 is on salvator-common */
 		rsnd_port1: port@1 {
+			reg = <1>;
 			rsnd_endpoint1: endpoint {
 				remote-endpoint = <&dw_hdmi0_snd_in>;
 

arch/arm64/boot/dts/renesas/r8a7796.dtsi

@@ -2162,17 +2162,6 @@ ssi9: ssi-9 {
 					dma-names = "rx", "tx";
 				};
 			};
-
-			ports {
-				#address-cells = <1>;
-				#size-cells = <0>;
-				port@0 {
-					reg = <0>;
-				};
-				port@1 {
-					reg = <1>;
-				};
-			};
 		};
 
 		audma0: dma-controller@ec700000 {