ARM: dts: armada-38x: add reference to ETH connectors for A385-AP

This commit adds some comments to the Armada 385 AP Device Tree
description to indicate which Ethernet interface matches which
physical connector on the board.

Signed-off-by: Thomas Petazzoni <[e-mail]>
Cc: Maxime Ripard <[e-mail]>
Signed-off-by: Gregory CLEMENT <[e-mail]>

arch/arm/boot/dts/armada-385-db-ap.dts

···
 				};
 			};
 
+			/* CON3 */
 			ethernet@30000 {
 				status = "okay";
 				phy = <&phy2>;
 				phy-mode = "sgmii";
 			};
 
+			/* CON2 */
 			ethernet@34000 {
 				status = "okay";
 				phy = <&phy1>;
 				phy-mode = "sgmii";
 			};
 
+			/* CON4 */
 			ethernet@70000 {
 				pinctrl-names = "default";