Replace a few references to native_posix / the native_posix ethernet
driver with native_sim, or native_tap.
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
Rename this driver to eth_native_tap, including renaming all its
options.
The old options remain until v4.4, but as deprecated.
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
native_posix is being removed as it has reached its end of life in 4.2,
after being deprecated since 4.0.
So these overlays will not serve any purpose anymore.
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>