LU-10819 o2ib: use splice in kiblnd_peer_connect_failed()

LU-10819 o2ib: use splice in kiblnd_peer_connect_failed()

In kiblnd_peer_connect_failed() replace a backwards list_add() and
list_del() with list_splice_init().

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: Ib00d5d911d1070b6c8b49f14a2c7fc3552da553c
Reviewed-on: https://review.whamcloud.com/31643
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Doug Oucharek <dougso@me.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>