arm64: dts: rockchip: fix px30 dsi node

With the conversion of rockchip,dw-mipi-dsi.yaml a port@1 node
is required, so add a node with label dsi_out.
Also add label dsi_in to port@0.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/1ee3e676-aef4-f464-82b0-8fb39ba5c60d@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/px30.dtsi

@@ -1138,7 +1138,7 @@ ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
 
-			port@0 {
+			dsi_in: port@0 {
 				reg = <0>;
 				#address-cells = <1>;
 				#size-cells = <0>;
@@ -1153,6 +1153,10 @@ dsi_in_vopl: endpoint@1 {
 					remote-endpoint = <&vopl_out_dsi>;
 				};
 			};
+
+			dsi_out: port@1 {
+				reg = <1>;
+			};
 		};
 	};