net: fec: set phy_of_node properly for fixed-link phy

If the FEC is connected to a fixed-link (upstream switch port for
example) the phy_of_node should be set to the fixed-link node
so that speed and other properties can be found properly.

In addition fix a typo in the debug string.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 3abf914..7768049 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -1304,7 +1304,11 @@
 	ret = dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
 					 &phandle_args);
 	if (ret) {
-		debug("Failed to find phy-handle (err = %d\n)", ret);
+		priv->phy_of_node = ofnode_find_subnode(dev_ofnode(dev),
+							"fixed-link");
+		if (ofnode_valid(priv->phy_of_node))
+			return 0;
+		debug("Failed to find phy-handle (err = %d)\n", ret);
 		return ret;
 	}