The default case of ramips_setup_macs() is useful when mtd-mac-address is defined in dts.
But lan_mac is not set by default, this results in lan and wan having the same mac.
Signed-off-by: Roman Yeryomin <roman@advem.lv>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41632 3c298f89-4303-0410-b956-a3cf2f4a3e73