This moves the trigger for the Netgear R6120's wlan2g_green LED from
base-files/etc/board.d/01_leds to the device-tree file.
This has been applied to R6120 based on findings for the very similar
Netgear R6080.
Signed-off-by: Alex Lewontin <alex.c.lewontin@gmail.com>
[merge case in 01_leds, slightly adjust commit message/title]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>