arm64: dts: renesas: r8a77961: Add lvds0 device node

Add the missing lvds0 node for the R-Car M3-W+ SoC.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20211224052309.1997096-3-nikita.yoush@cogentembedded.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r8a77961.dtsi

@@ -2722,6 +2722,33 @@ du_out_hdmi0: endpoint {
 				port@2 {
 					reg = <2>;
 					du_out_lvds0: endpoint {
+						remote-endpoint = <&lvds0_in>;
+					};
+				};
+			};
+		};
+
+		lvds0: lvds@feb90000 {
+			compatible = "renesas,r8a77961-lvds";
+			reg = <0 0xfeb90000 0 0x14>;
+			clocks = <&cpg CPG_MOD 727>;
+			power-domains = <&sysc R8A77961_PD_ALWAYS_ON>;
+			resets = <&cpg 727>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					lvds0_in: endpoint {
+						remote-endpoint = <&du_out_lvds0>;
+					};
+				};
+				port@1 {
+					reg = <1>;
+					lvds0_out: endpoint {
 					};
 				};
 			};