net: hns3: add support for 1us unit GL configuration

mainline inclusion
from mainline-v5.11-rc1
commit 5ac84b02
category: feature
bugzilla: 173966
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5ac84b02d372ff45bce48c78beedbffe7c9158c0



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For device whose version is above V3(include V3), the GL
configuration can set as 1us unit, so adds support for
configuring this field.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: li yongxin <liyongxin1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>