EdgeRouter 4 and upcoming EdgeRouter 6P and 12 have similar setup,
so create a shared DTSI to prevent duplicate code.
Signed-off-by: Dan Brown <danbrown@gmail.com>
[reorder/squash commits, add description, move ethernet@0 to DTS]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Signed-off-by: maurerr <mariusd84@gmail.com>