This moves WiFi LED triggers from 01_leds to device tree. While at it, convert the labels there to lower case; this is more commonly used and the change will actually remove competition between DT trigger and leftover uci config on already installed systems. Suggested-by: Georgi Vlaev <georgi.vlaev@gmail.com> Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>