RDMA/hns: Fix inaccurate error label name in init instance

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7A2V2



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This patch fixes inaccurate error label name in init instance.

Fixes: 6f5f556d ("RDMA/hns: Use the reserved loopback QPs to free MR before destroying MPT")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
(cherry picked from commit c0f88964)