Avoids the occacial lost race, where VAPs are created before the hotplug
script has updated the phy mac address.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Link: https://github.com/openwrt/openwrt/pull/20154
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>