net: phy: remove flags argument from phy_{attach, connect, connect_direct}

The flags argument of the phy_{attach,connect,connect_direct} functions
is then used to assign a struct phy_device dev_flags with its value.
All callers but the tg3 driver pass the flag 0, which results in the
underlying PHY drivers in drivers/net/phy/ not being able to actually
use any of the flags they would set in dev_flags. This patch gets rid of
the flags argument, and passes phydev->dev_flags to the internal PHY
library call phy_attach_direct() such that drivers which actually modify
a phy device dev_flags get the value preserved for use by the underlying
phy driver.

Acked-by: Kosta Zertsekel <konszert@marvell.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c
index c8e0aa8..fdbab72 100644
--- a/drivers/net/usb/ax88172a.c
+++ b/drivers/net/usb/ax88172a.c
@@ -377,7 +377,7 @@
 
 	priv->phydev = phy_connect(dev->net, priv->phy_name,
 				   &ax88172a_adjust_link,
-				   0, PHY_INTERFACE_MODE_MII);
+				   PHY_INTERFACE_MODE_MII);
 	if (IS_ERR(priv->phydev)) {
 		netdev_err(dev->net, "Could not connect to PHY device %s\n",
 			   priv->phy_name);