These devices use AR9285, which uses 1f8 as the calibration size, not
440 like newer chips do. Actually the driver mandates a minimum of 200.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/19863
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
d13c3200ea