block: fix blk_zone_append_update_request_bio() kernel-doc

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 <sfr@canb.auug.org.au>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20250716133631.94898-1-johannes.thumshirn@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>