scsi: lpfc: Fix sg_reset on SCSI device causing kernel crash

scsi: lpfc: Fix sg_reset on SCSI device causing kernel crash

Orabug: 25486030

Fix sg_reset on SCSI device causing kernel crash

Driver could reference stale node pointers in task mgmt call.
Changed to use resetting cmd and look up node pointer in task mgmt
function.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit eed695d70e7eff55595f222b55b96f105d4a27ca)
Signed-off-by: Brian Maly <brian.maly@oracle.com>