ARM: dts: sun5i: Fix Display Engine DTC warnings

Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

arch/arm/boot/dts/sun5i-a13-olinuxino.dts

@@ -74,8 +74,6 @@ power {
 
 	bridge {
 		compatible = "dumb-vga-dac";
-		#address-cells = <1>;
-		#size-cells = <0>;
 
 		ports {
 			#address-cells = <1>;

arch/arm/boot/dts/sun5i-a13-q8-tablet.dts

@@ -53,16 +53,9 @@ panel: panel {
 		power-supply = <&reg_vcc3v3>;
 		enable-gpios = <&axp_gpio 0 GPIO_ACTIVE_HIGH>; /* AXP GPIO0 */
 		backlight = <&backlight>;
-		#address-cells = <1>;
-		#size-cells = <0>;
 
-		port@0 {
-			reg = <0>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			panel_input: endpoint@0 {
-				reg = <0>;
+		port {
+			panel_input: endpoint {
 				remote-endpoint = <&tcon0_out_lcd>;
 			};
 		};