LU-17689 o2iblnd: handle unexpected network data gracefully

LU-17689 o2iblnd: handle unexpected network data gracefully

Remove assertions in favour of graceful handling of
unexpected data coming in: prefer to report and handle the error
and carry on.

Test-Parameters: trivial testlist=sanity-lnet
Signed-off-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Change-Id: I62dc260e781ab0d2a5069560ca05f692a612bb8f
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55501
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>