LU-18184 llog: llog_process() with struct llog_process_data

LU-18184 llog: llog_process() with struct llog_process_data

BUG: KASAN: global-out-of-bounds in \
llog_process_or_fork+0xd0e/0xd60 [obdclass]

Calling llog_process 4th argument must be either NULL or
struct llog_process_data

Test-Parameters: trivial testlist=sanity env=ONLY="60a"
Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: Iff4848365b5123df25d90811412a43307a115214
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/56213
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Mikhail Pershin <mpershin@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Etienne AUJAMES <eaujames@ddn.com>