!2863 Support some dfx for hns3

Merge Pull Request from: @svishen 
 
This pr add support some dfx way for hns3:

(1)Support dump pfc frame statistics in tx timeout log
(2)Dump more reg info base on ras mod before reset, which is useful to analyze the ras error.
(3)Add support for page_pool_get_stats, then the hns3 driver can get page pool statistics by ethtool.
(4)hns3 driver does not have the trace of the command queue. As a result, it is difficult to locate the communication between the driver and firmware. Therefore, the trace function of the command queue is added in this test case to facilitate the locating of communication problems between the driver and firmware.

issue:
https://gitee.com/openeuler/kernel/issues/I8GK5Q 
 
Link:https://gitee.com/openeuler/kernel/pulls/2863

 

Reviewed-by: Ke Chen <chenke54@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>