RDMA/hns: Cleanup of RoCE Bonding driver

driver inclusion
category: cleanup
bugzilla: https://gitee.com/openeuler/kernel/issues/I8HZ73



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

Cleanup for uninitialized value and applying bitwise to signed quantity
in RoCE Bonding driver.

Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>