ramips: remove duplicate MAC assignment case

Cudy WR1000 and Wavlink WL-WN577A2 store WAN as well as label MAC address
at the same position in flash.

Suggested-by: Sungbo Eo <mans0n@gorani.run>
Signed-off-by: David Bauer <mail@david-bauer.net>

target/linux/ramips/mt76x8/base-files/etc/board.d/02_network

@@ -144,7 +144,8 @@ ramips_setup_macs()
 		wan_mac="$(grep -m1 mac= "/dev/mtd${index}" | cut -d= -f2)"
 		lan_mac=$wan_mac
 		;;
-	cudy,wr1000)
+	cudy,wr1000|\
+	wavlink,wl-wn577a2)
 		wan_mac=$(mtd_get_mac_binary factory 0x2e)
 		label_mac=$(mtd_get_mac_binary factory 0x4)
 		;;
@@ -188,10 +189,6 @@ ramips_setup_macs()
 	wiznet,wizfi630s)
 		wan_mac=$(macaddr_add "$(mtd_get_mac_binary factory 0x28)" 1)
 		;;
-	wavlink,wl-wn577a2)
-		wan_mac=$(mtd_get_mac_binary factory 0x2e)
-		label_mac=$(mtd_get_mac_binary factory 0x4)
-		;;
 	skylab,skw92a|\
 	totolink,lr1200)
 		wan_mac=$(mtd_get_mac_binary factory 0x2e)