sh: sh_eth: Update to change of mii_bus
Update to change of mii_bus interface and fix some warning.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by Nobuhiro Iwamatsu and committed by David S. Miller fb5e2f9b c8283845