net: fsl_mdio: Change to use virtual address

Use virtual address to access the MII block registers instead
of physical address.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/drivers/net/fsl_mdio.c b/drivers/net/fsl_mdio.c
index d2edd17..ae96ce4 100644
--- a/drivers/net/fsl_mdio.c
+++ b/drivers/net/fsl_mdio.c
@@ -213,7 +213,7 @@
 		printf("dev_get_priv(dev %p) = NULL\n", dev);
 		return -1;
 	}
-	priv->regs = (void *)(uintptr_t)dev_read_addr(dev);
+	priv->regs = dev_remap_addr(dev);
 	debug("%s priv %p @ regs %p, pdata %p\n", __func__,
 	      priv, priv->regs, pdata);