In ar71xx, the board name for the TL-WR1043ND v3 is equal to v2:
tl-wr1043nd-v2
Fix SUPPORTED_DEVICES for v3 in ath79 accordingly.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit b5791118ccd3039cc9ef6fd3b1c4efcad6ab154f)