This is a simple conversion to dts.
68ac3f2cdd states that the 5ghz wifi address is calculated from ART 0
+ 2.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17066
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>