scsi: lpfc: Reduce LOG_TRACE_EVENT logging for vports

Lots of discovery messages are flooding the console log when testing NPIV.

Informational message for vports should have LOG_VPORT associated with it
as opposed to LOG_TRACE_EVENT.

Link: https://lore.kernel.org/r/20210301171821.3427-20-jsmart2021@gmail.com


Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>