The duplicate sections are caused by a race condition at boot, when board.json
is not available. In that case, the final phy name cannot be resolved, and extra
sections referring to the path are created.
Fix this by making sure that wifi config is not being run before board.json
is created.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit b993a00b82b1bdd682199e44eb81a70dee78e5c9)