RDMA/hns: Fix restricted __le16 degrades to integer issue

Fix sparse warnings: restricted __le16 degrades to integer.

Fixes: 5a872795 ("RDMA/hns: Support hns HW stats")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202409080508.g4mNSLwy-lkp@intel.com/


Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://patch.msgid.link/20240909065331.3950268-1-huangjunxian6@hisilicon.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>