RDMA/hns: Replace tab with space in the right-side comments

mainline inclusion
from mainline-v5.16-rc2
commit 3aecfc38
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4QOTS
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/commit/?id=3aecfc3802d835fc47a317f9d8b01a5c918d8336

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There should be a space between the code and the comment on the right.

Link: https://lore.kernel.org/r/20211119140208.40416-4-liangwenpeng@huawei.comSigned-off-by: NXinhao Liu <liuxinhao5@hisilicon.com>
Signed-off-by: NWenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: NJason Gunthorpe <jgg@nvidia.com>
sigend-off-by: NGuofeng Yue <yueguofeng@hisilicon.com>
Reviewed-by: NYangyang Li <liyangyang20@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>