HAX net/phy: Suppress WARN from phy_error

References: https://gitlab.freedesktop.org/drm/intel/-/issues/8047
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2874


Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@intel.com>