MFC r320492: Polish target_id/target_lun setting for ATIOs/INOTs.

For ATIOs it is pointless to report isp_loopid to CAM, since in other
places it operates with port database record IDs, not with loop IDs.

For INOTs target_id/target_lun seems were never set, so wildcard INOTs
probably were not working correctly when LUN IDs were important.