ar71xx: fix MAC addresses on TP-Link TL-WR1043ND v4

The addresses were read from the 'config' partition, which would not always
contain the addresses at the same offsets, depending on the stock firmware
version used before flashing LEDE. Change this to get the addresses from
the 'product-info' partition, which is read-only.

Reported-and-tested-by: Andreas Ziegler <ml@andreas-ziegler.de>
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

target/linux/ar71xx/base-files/etc/board.d/02_network

@@ -531,7 +531,8 @@ ar71xx_setup_macs()
 		lan_mac=$(fritz_tffs -n maca -i $(find_mtd_part "tffs (1)"))
 		;;
 	tl-wr1043nd-v4)
-		wan_mac=$(mtd_get_mac_binary config 0x1017c)
+		lan_mac=$(mtd_get_mac_binary product-info 8)
+		wan_mac=$(macaddr_add "$lan_mac" 1)
 		;;
 	esr900)
 		wan_mac=$(mtd_get_mac_ascii u-boot-env "wanaddr")

target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr1043nd-v4.c

@@ -57,7 +57,7 @@
 #define TL_WR1043_V4_KEYS_POLL_INTERVAL		20 /* msecs */
 #define TL_WR1043_V4_KEYS_DEBOUNCE_INTERVAL	(3 * TL_WR1043_V4_KEYS_POLL_INTERVAL)
 
-#define TL_WR1043_V4_MAC_LOCATION		0x1ff80174
+#define TL_WR1043_V4_MAC_LOCATION		0x1ff50008
 
 #define TL_WR1043_V4_EEPROM_ADDR		0x1fff0000
 #define TL_WR1043_V4_WMAC_CALDATA_OFFSET	0x1000