ARM: dts: am335x: drop panel endpoint unit address

The endpoint in panel port node should not have unit address:

am335x-evmsk.dtb: panel: port:endpoint@0: 'reg' is a required property

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Acked-by: Tony Lindgren <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/arm/boot/dts/am335x-evm.dts

···
 		backlight = <&backlight>;
 
 		port {
-			panel_0: endpoint@0 {
+			panel_0: endpoint {
 				remote-endpoint = <&lcdc_0>;
 			};
 		};

arch/arm/boot/dts/am335x-evmsk.dts

···
 		backlight = <&lcd_bl>;
 
 		port {
-			panel_0: endpoint@0 {
+			panel_0: endpoint {
 				remote-endpoint = <&lcdc_0>;
 			};
 		};