mt7620 and mt7621 use mt7530 driver, which only accepts "llllw", "wllll",
and "lwlll" values.
According to its switch setup, Mi Router 3G v2 has a WAN port at port 4,
so the correct value should be "llllw".
Signed-off-by: Sungbo Eo <mans0n@gorani.run>
(backported from commit d3c0a94405)
[removed devices not in 19.07]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
d3eabe44d0