net: hns3: split function hclge_reset_rebuild()

mainline inclusion
from mainline-v5.13-rc1
commit 74d439b7
category: feature
bugzilla: 173966
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=74d439b74ad3e05780d4cf3ab047345b443f7e67



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hclge_reset_rebuild() is a bit too long. So add a new function
hclge_update_reset_level() to improve readability.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Yongxin Li <liyongxin1@huawei.com>
Signed-off-by: Junxin Chen <chenjunxin1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>