If we failed to enable NIC HW error interrupts during client
initialization in some cases, we should do exception handling to clear
flags and free the resources.

Fixes: 00ea6e5f ("net: hns3: delay and separate enabling of NIC and ROCE HW errors")
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Signed-off-by: NHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>