LU-6142 lnet: Handle differently return from kib_fmr_pool_map()

LU-6142 lnet: Handle differently return from kib_fmr_pool_map()

This patch removes likely() macro when handling
return from kib_fmr_pool_map() and reorders the
case for if/else.

This patch also fixes issues reported by checkpatch
for file lnet/klnds/o2iblnd/o2iblnd.c

Test-Parameters: trivial testlist=sanity-lnet
Signed-off-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Change-Id: I3dd1f45979e19d3f677d04876c66ba45dcfe9576
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55736
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>