LU-14100 gnilnd: fix kgnilnd_setup_immediate_buffer

LU-14100 gnilnd: fix kgnilnd_setup_immediate_buffer

struct kvec * removed from kgnilnd_setup_immediate_buffer

Fixes: c87f41dd20 ("LU-13004 gnilnd: discard struct kvec arg.")
Test-Parameters: trivial
Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: Ie3c511326af6ddb09b6bfa13bb779fc094ba30ec
Reviewed-on: https://review.whamcloud.com/40504
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: Petros Koutoupis <petros.koutoupis@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>