scsi: hpsa: do not print errors for unsupported report luns format

Legacy boards might not support the 'extended' report luns format,
but as this is to be expected we don't need to print out an error here.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>