net/hns3: fix time delta calculation

net/hns3: fix time delta calculation

Currently, driver uses gettimeofday() API to get the time, and
then calculate the time delta, the delta will be used mainly in
judging timeout process.

But the time which gets from gettimeofday() API isn't monotonically
increasing. The process may fail if the system time is changed.

We use the following scheme to fix it:
1. Add hns3_clock_gettime() API which will get the monotonically
   increasing time.
2. Add hns3_clock_calctime_ms() API which will get the milliseconds of
   the monotonically increasing time.
3. Add hns3_clock_calctime_ms() API which will calc the milliseconds of
   a given time.

Fixes: 2790c6464725 ("net/hns3: support device reset")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>