blk-mq: fix kabi broken by "blk-mq: fix hang caused by freeze/unfreeze sequence"

hulk inclusion
category: bugfix
bugzilla: 173119
CVE: NA

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Add struct request_queue_wrapper to avoid kabi broken.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>