RDMA/hns: Remove redundant address operations in print DCA logs

driver inclusion
category: cleanup
bugzilla: https://gitee.com/openeuler/kernel/issues/I6GT7F



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Point hr_dev->ib_dev has already been kept in variable ib_dev.

Fixes: 12aa71f8 ("RDMA/hns: Add DCA support for kernel space")
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>