This uses the flash locations instead of eth0 MAC address to
calculate MAC address increments for WAN.
The change will make the MAC address setup of a particular device
more obvious and removes the dependency of 02_network on the eth0
initialization.
This removes the wan_mac setup for ralink,v11st-fe as this device
does not set up a MAC address for ethernet in the first place.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
a858d6d0e2