ARM: dts: rockchip: fix lvds-encoder ports subnode for rk3188-bqedison2qc

A test with the command below gives this error:

arch/arm/boot/dts/rk3188-bqedison2qc.dt.yaml: lvds-encoder:
'ports' is a required property

Fix error by adding a ports wrapper for port@0 and port@1
inside the 'lvds-encoder' node for rk3188-bqedison2qc.

make ARCH=arm dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/display/
bridge/lvds-codec.yaml
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20200316174647.5598-1-jbx6244@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3188-bqedison2qc.dts

@@ -58,11 +58,14 @@ gpio-poweroff {
 
 	lvds-encoder {
 		compatible = "ti,sn75lvds83", "lvds-encoder";
+
+		ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
 
 			port@0 {
 				reg = <0>;
+
 				lvds_in_vop0: endpoint {
 					remote-endpoint = <&vop0_out_lvds>;
 				};
@@ -70,11 +73,13 @@ lvds_in_vop0: endpoint {
 
 			port@1 {
 				reg = <1>;
+
 				lvds_out_panel: endpoint {
 					remote-endpoint = <&panel_in_lvds>;
 				};
 			};
 		};
+	};
 
 	panel {
 		compatible = "innolux,ee101ia-01d", "panel-lvds";