scsi: smartpqi: Replace one-element arrays with flexible-array members

One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in structures report_phys_lun_8byte_wwid_list and
report_phys_lun_16byte_wwid_list.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy().

Link: KSPP#79
Link: KSPP#204
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

drivers/scsi/smartpqi/smartpqi.h

@@ -982,12 +982,12 @@ struct report_phys_lun_16byte_wwid {
 
 struct report_phys_lun_8byte_wwid_list {
 	struct report_lun_header header;
-	struct report_phys_lun_8byte_wwid lun_entries[1];
+	struct report_phys_lun_8byte_wwid lun_entries[];
 };
 
 struct report_phys_lun_16byte_wwid_list {
 	struct report_lun_header header;
-	struct report_phys_lun_16byte_wwid lun_entries[1];
+	struct report_phys_lun_16byte_wwid lun_entries[];
 };
 
 struct raid_map_disk_data {