drivers: ethernet: remove imply MDIO

remove `imply MDIO` from the
ethernet drivers, that don't directly use mdio
and only use the ethernet phy api, now that the
phys select MDIO.

in 648c8252b575879c2e926d0b051febf2cb1672d1 the
`select MDIO` ones were remove, unfortunatly I forgot
the implyed ones.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>