block: Fix io statistics for cgroup in throttle path

In the current code, io statistics are missing for cgroup when bio
was throttled by blk-throttle. Fix it by moving the unreaching code
to submit_bio_noacct_nocheck.

Fixes: 3f98c753 ("block: don't check bio in blk_throtl_dispatch_work_fn")
Signed-off-by: Jinke Han <hanjinke.666@bytedance.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230216032250.74230-1-hanjinke.666@bytedance.com


Signed-off-by: Jens Axboe <axboe@kernel.dk>