ramips: WizFi630S use macs from factory partion

ramips: WizFi630S use macs from factory partion

WIZnet WizFi630s has three mac addresses in the factory partition:
0x04 (also on the label), 0x28 for wan mac and 0x2e as lan mac.
All three macadresses are sequential series of addresses.
This is making use of them.

While at it, also add the label MAC address to 02_network.

MAC addresses as verified by OEM firmware:

use      interface   source
WLAN     ra0         factory 0x04 (label)
WAN      eth0.2      factory 0x28 (label + 1)
LAN      eth0.1      factory 0x2e (label + 2)

Signed-off-by: Tobias Welz <tw@wiznet.eu>
[fix sorting in 02_network, commit message adjustments]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>