net/fsl: remove dependency FSL_SOC from MDIO

FSL_PQ_MDIO and FSL_XGMAC_MDIO are not really depend on FSL_SOC, they
can build on non-PPC platforms.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shaohui Xie 2015-03-10 18:31:12 +08:00 • committed by David S. Miller
commit 19693f1166