net: hns3: Fix a loop index error of tqp statistics query

net: hns3: Fix a loop index error of tqp statistics query

BugLink: http://bugs.launchpad.net/bugs/1756097
An error loop index was used while querying statistics data
of tqps, which may cause call trace.

Fixes: 496d03e960ae ("net: hns3: Add Ethtool support to HNS3 driver")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 94bfaafac9d2a3c0bcca00d01e38f7597b741799)
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>