[RESEND PATCH v2 3/3] block: hide back blk_freeze_queue_start and export its blk-mq alias

[Jinlong Chen]

>
> Greeting,
> 
> FYI, we noticed WARNING:at_block/blk-mq.c:#blk_mq_freeze_queue due to commit (built with gcc-11):
>

Sorry for the disturbance.

The patch series is deprecated. Please ignore this.

Thanks!
Jinlong Chen