When upgrading a TP-Link Archer C5 v1 from ar71xx to ath79, the 5ghz radio stops working because the device path changed. Same has been done for the Archer C7 before: commite19506f206("ath79: migrate Archer C7 5GHz radio device paths") Signed-off-by: Jan-Niklas Burfeind <git@aiyionpri.me> (cherry picked from commitc6eb63d48f)