This hack is needed for old ethernet driver:
On mt7620, we have two exposed RGMII ports that connects to builtin
switch. However, swconfig has no way to interact with phy subsystem.
As a result, we have to register both PHYs to ethernet mac instead
and this patch prevents main ethernet interface from going down due
to phy link changes.
Also rename the patch for its actual purpose.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
6fcba5eec3