drivers/net: fix up stale paths from driver reorg

The reorganization of the driver layout in drivers/net
left behind some stale paths in comments and in Kconfig
help text.  Bring them up to date.  No actual change to
any code takes place here.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/networking/phy.txt b/Documentation/networking/phy.txt
index 9eb1ba5..95e5f59 100644
--- a/Documentation/networking/phy.txt
+++ b/Documentation/networking/phy.txt
@@ -62,7 +62,8 @@
  5) The bus must also be declared somewhere as a device, and registered.
 
  As an example for how one driver implemented an mdio bus driver, see
- drivers/net/gianfar_mii.c and arch/ppc/syslib/mpc85xx_devices.c
+ drivers/net/ethernet/freescale/fsl_pq_mdio.c and an associated DTS file
+ for one of the users. (e.g. "git grep fsl,.*-mdio arch/powerpc/boot/dts/")
 
 Connecting to a PHY