scsi: lpfc: fix coverity error of dereference after null check

Log message conditional upon vport being NULL dereferences vport to
determine log verbose setting.

Changed to use lpfc_print_log which uses phba to determine the active log
verbose setting.

Fixes: 43bfea1b

 ("scsi: lpfc: Fix coverity errors on NULL pointer checks")
Link: https://lore.kernel.org/r/20191018211832.7917-8-jsmart2021@gmail.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>