For MT7620, we should always prevent main ethernet interface from
going down due to phy link changes. And the ralink net driver does
not support cable test function, so this patch won't change any
behavior.
Ref:
6fcba5eec3 ("ramips: port 0034-NET-multi-phy-support.patch to 5.4")
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Link: https://github.com/openwrt/openwrt/pull/15591
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
6e51b363e9