net: phy: Simplify the logic of phy_connect_fixed()

Simplify the logic of phy_connect_fixed() by using the new API
ofnode_phy_is_fixed_link(), which brings additional bonus of
supporting the old DT bindings.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
1 file changed