ARM: dts: sun7i: Fix HDMI output DTC warning

Our HDMI output endpoint on the A10s DTSI has a warning under DTC: "graph
node has single child node 'endpoint', #address-cells/#size-cells are not
necessary". Fix this by removing those properties.

Signed-off-by: Maxime Ripard <[e-mail]>
Acked-by: Chen-Yu Tsai <[e-mail]>

arch/arm/boot/dts/sun7i-a20.dtsi

···
 				};
 
 				hdmi_out: port@1 {
-					#address-cells = <1>;
-					#size-cells = <0>;
 					reg = <1>;
 				};
 			};