ath79: fix support for TL-MR3020 v1

Change lan and it's LED to eth0
It's broken since c7c807cb8c
where I changed the dts but forgot to change default configurations.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>

target/linux/ath79/base-files/etc/board.d/01_leds

@@ -46,7 +46,7 @@ case "$board" in
 	ucidef_set_led_netdev "lan_link" "LAN Link" "tp-link:green:lan_link" "eth0" "link"
 	;;
 "tplink,tl-mr3020-v1")
-	ucidef_set_led_switch "lan" "LAN" "tp-link:green:lan" "switch0" "0x02"
+	ucidef_set_led_netdev "lan" "LAN" "tp-link:green:lan" "eth0"
 	;;
 "tplink,tl-wr1043nd-v4")
 	ucidef_set_led_switch "wan" "WAN" "tp-link:green:wan" "switch0" "0x20"

target/linux/ath79/base-files/etc/board.d/02_network

@@ -17,6 +17,7 @@ ath79_setup_interfaces()
 	"pcs,cap324"|\
 	"tplink,re450-v2"|\
 	"tplink,tl-mr10u"|\
+	"tplink,tl-mr3020-v1"|\
 	"tplink,tl-wr703n"|\
 	"ubnt,unifiac-lite"|\
 	"ubnt,unifiac-mesh"|\
@@ -59,11 +60,6 @@ ath79_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth1" "2:lan" "3:lan" "4:lan" "5:lan" "6@eth0" "1:wan"
 		;;
-
-	"tplink,tl-mr3020-v1")
-		ucidef_set_interface_lan "eth0.1"
-		ucidef_add_switch "switch0" "0@eth0" "1:lan"
-		;;
 	"tplink,tl-mr3220-v1"|\
 	"tplink,tl-mr3420-v1"|\
 	"tplink,tl-wr841-v7")