Increase-debugfs_dump_index-after-dump

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4NDP8


CVE: NA

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

The hisi_hba debugfs_dump_index member should increased after a dump
insertion completed, and not before it has started, so fix the code to do
so.

Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ouyangdelong <ouyangdelong@huawei.com>
Signed-off-by: Nifujia <nifujia1@hisilicon.com>
Reviewed-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>