scsi: make sure that request queue queiesce and unquiesce balanced

hulk inclusion
category: bugfix
bugzilla: 182378 https://gitee.com/openeuler/kernel/issues/I4DDEL



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For fixing queue quiesce race between driver and block layer(elevator
switch, update nr_requests, ...), we need to support concurrent quiesce
and unquiesce, which requires the two call balanced.

It isn't easy to audit that in all scsi drivers, especially the two may
be called from different contexts, so do it in scsi core with one per-device
bit flag & global spinlock, basically zero cost since request queue quiesce
is seldom triggered.

Reported-by: Yi Zhang <yi.zhang@redhat.com>
Fixes: e70feb8b ("blk-mq: support concurrent queue quiesce/unquiesce")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>

Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>