net: hns3: add support to utilize the firmware calculated shaping parameters

Since the calculation of the driver is fixed, if the number of
queue or clock changed, the calculated result may be inaccurate.

So for compatible and maintainable, add a new flag to tell the
firmware to calculate the shaping parameters with the specified
rate.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>