qualcommax: ipq807x: mx5300: use existing aliases node

No need to add another aliases node just for the label-mac-device,
luckily DTC was smart enough to combine them together in the final DTB.

Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 1f53503)

Author: robimarko

target/linux/qualcommax/files/arch/arm64/boot/dts/qcom/ipq8072-mx5300.dts

@@ -28,17 +28,14 @@
 		led-running = &led_system_blue;
 		led-failsafe = &led_system_red;
 		led-upgrade = &led_system_green;
+		label-mac-device = &dp2;
 	};
 
 	chosen {
 		stdout-path = "serial0:115200n8";
 		bootargs-append = " root=/dev/ubiblock0_0 rootfstype=squashfs ro";
 	};
 
-	aliases {
-		label-mac-device = &dp2;
-	};
-
 	keys {
 		compatible = "gpio-keys";
 		pinctrl-0 = <&button_pins>;