net: hns3: add phy_attached_info() to the hns3 driver

This patch adds the call to phy_attached_info() to the hns3 driver
to identify which exact PHY drivers and models is in use.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>