scsi: qla2xxx: Cleanup code to improve FC-NVMe error handling

This patch cleans up ABTS handling for FC-NVMe by

- Removing allocation of sp, instead pass the sp pointer for abort IOCB
- Fix error handling from Trasport failure
- set outstanding_cmds array to NULL for nvme completion

Signed-off-by: Darren Trapp <darren.trapp@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>