ath79: fix label MAC address for Ubiquiti UniFi AP Outdoor+

The label has the MAC address of eth0, not the WLAN PHY address. We can
merge the definition back into ar7241_ubnt_unifi.dtsi, as both DTS
derived from it use the same interface for their label MAC addresses
after all.

Signed-off-by: Matthias Schiffer <[email protected]>

target/linux/ath79/dts/ar7241_ubnt_unifi-ap-outdoor-plus.dts

@@ -7,7 +7,6 @@
 	model = "Ubiquiti UniFi AP Outdoor+";
 
 	aliases {
-		label-mac-device = &wifi;
 		led-boot = &led_white;
 		led-failsafe = &led_white;
 		led-running = &led_blue;

target/linux/ath79/dts/ar7241_ubnt_unifi.dts

@@ -7,7 +7,6 @@
 	model = "Ubiquiti UniFi AP";
 
 	aliases {
-		label-mac-device = &eth0;
 		led-boot = &led_dome_green;
 		led-failsafe = &led_dome_green;
 		led-running = &led_dome_green;

target/linux/ath79/dts/ar7241_ubnt_unifi.dtsi

@@ -6,6 +6,10 @@
 #include <dt-bindings/input/input.h>
 
 / {
+	aliases {
+		label-mac-device = &eth0;
+	};
+
 	extosc: ref {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;