RDMA/hns: Fix a missing kfree() to hr_dev->priv

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



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

When vf check fails, the current code dealloc ib_dev without kfree
hr_dev->priv. This patch fixes this error.

Fixes: a39f16a1 ("RDMA/hns: fix the error of RoCE VF based on RoCE Bonding PF")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
(cherry picked from commit ef71d472)