net: designware: use 'phy_connect' instead of open coded

Using 'phy_connect' instead of 'phy_find_by_mask' and 'phy_connect_dev'
both deduplicates code and adds support for 'fixed-link'.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index 3b6cf5d..c4fe40b 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -480,18 +480,16 @@
 static int dw_phy_init(struct dw_eth_dev *priv, void *dev)
 {
 	struct phy_device *phydev;
-	int mask = 0xffffffff, ret;
+	int phy_addr = -1, ret;
 
 #ifdef CONFIG_PHY_ADDR
-	mask = 1 << CONFIG_PHY_ADDR;
+	phy_addr = CONFIG_PHY_ADDR;
 #endif
 
-	phydev = phy_find_by_mask(priv->bus, mask, priv->interface);
+	phydev = phy_connect(priv->bus, phy_addr, dev, priv->interface);
 	if (!phydev)
 		return -ENODEV;
 
-	phy_connect_dev(phydev, dev);
-
 	phydev->supported &= PHY_GBIT_FEATURES;
 	if (priv->max_speed) {
 		ret = phy_set_supported(phydev, priv->max_speed);