The purpose is to prepared for implement the async crc32 caculation in the future patch. Signed-off-by: Ziye Yang <ziye.yang@intel.com> Change-Id: I49f84ea1966f0acdd6f5aeb7192896f91fd16dee Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7793 Community-CI: Broadcom CI Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>