This is required for upcoming Keenetic KN-3911 support
Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/16830
(cherry picked from commit 79db5d65ca)
Link: https://github.com/openwrt/openwrt/pull/18055
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>