scsi: qla2xxx: Log calling function name in qla2x00_get_sp_from_handle()

Commit 7c3df132 ("[SCSI] qla2xxx: Code changes to support new dynamic
logging infrastructure.") removed the use of the func argument. Let's add
it back.

Link: https://lore.kernel.org/r/20200908081516.8561-4-dwagner@suse.de


Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>