* don't use net_device::mem*
* use net_device::stats
* use per-device rx ring size configurable through ethtool
* use more ethernet generics (get_stats, set_mac_address, change_mtu)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9098 3c298f89-4303-0410-b956-a3cf2f4a3e73