kernel: adm6996: set carrier status

Due to the missing carrier status set, the interface wasn't usable on a
BTHOMEHUB2B after ip link down and up as it is done in preinit.

Signed-off-by: Mathias Kresin <dev@kresin.me>

target/linux/generic/files/drivers/net/phy/adm6996.c

@@ -1052,6 +1052,11 @@ static int adm6996_read_status(struct phy_device *phydev)
 	phydev->speed = SPEED_100;
 	phydev->duplex = DUPLEX_FULL;
 	phydev->link = 1;
+
+	phydev->state = PHY_RUNNING;
+	netif_carrier_on(phydev->attached_dev);
+	phydev->adjust_link(phydev->attached_dev);
+
 	return 0;
 }