net: hns3: update the comment of function hclgevf_get_mbx_resp

The param of function hclgevf_get_mbx_resp has been changed but the
comments not upodated. This patch updates it.

Signed-off-by: Peng <Li&lt;lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>