net: hns3: modify a print message

driver inclusion
category: cleanup
bugzilla: NA
CVE: NA

----------------------------

When dump all info of qs shapers, the colon should at the end.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Reviewed-by: Yongxin Li <liyongxin1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>