block: fix blk_zone_append_update_request_bio() kernel-doc

Stephen reported new 'make htmldocs' warnings introduced by 4cc21a00762b
("block: add tracepoint for blk_zone_update_request_bio").

One is a wrong function name in the tracepoint's kernel-doc and one is a
wrong function parameter.

Fix these so 'make htmldocs' is warning free again for the block layer
tracepoints.

Fixes: 4cc21a00762b ("block: add tracepoint for blk_zone_update_request_bio")
Reported-by: Stephen Rothwell <[e-mail]>
Signed-off-by: Johannes Thumshirn <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jens Axboe <[e-mail]>

include/trace/events/block.h

···
 );
 
 /**
- * block_zone_update_request_bio - update the bio sector after a zone append
- * @bio: the completed block IO operation
+ * blk_zone_append_update_request_bio - update bio sector after zone append
+ * @rq: the completed request that sets the bio sector
  *
  * Update the bio's bi_sector after a zone append command has been completed.
  */