Several error codes will be generated between PHY down to up.

This issue was introduced by HW design. The designers came to the
conclusion that we should ignore these errors.
Signed-off-by: Jiaxing Luo <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>