By adding the vendor to the Makefile device definition node name,
one can derive the standard compatible used in SUPPORTED_DEVICES
instead of having to specify it manually.
Despite, this moves the naming scheme closer to what is used for
other targets (ath79, ramips).
Build-tested on all subtargets.
Run-tested on TP-Link TL-WDR4900 v1.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
118749271b