LU-9679 lnet: use LIST_HEAD() for local lists.

When declaring a local list head, instead of

   struct list_head list;
   INIT_LIST_HEAD(&list);

use
   LIST_HEAD(list);

which does both steps.

Signed-off-by: Mr NeilBrown <neilb@suse.de>
Change-Id: Ia1f1f1abf1b8a9f50e3033976990010b1d2100db
Reviewed-on: https://review.whamcloud.com/36954
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Reviewed-by: Chris Horn <hornc@cray.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>