RDMA/hns: Correct the print format to be consistent with the variable type

The print format should be consistent with the variable type.

Link: https://lore.kernel.org/r/20211119140208.40416-3-liangwenpeng@huawei.com


Signed-off-by: Xinhao Liu <liuxinhao5@hisilicon.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>