[SCSI] aic79xx: fix sense_buffer access bug

The commit de25deb18016f66dcdede165d07654559bb332bc changed
scsi_cmnd.sense_buffer from a static array to a dynamically allocated
buffer. We can't access to sense_buffer in '&cmd->sense_buffer' way.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/aic7xxx/aic79xx_osm.c

@@ -1922,7 +1922,7 @@ ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
 				struct scsi_sense_data *sense;
 				
 				sense = (struct scsi_sense_data *)
-					&cmd->sense_buffer;
+					cmd->sense_buffer;
 				if (sense->extra_len >= 5 &&
 				    (sense->add_sense_code == 0x47
 				     || sense->add_sense_code == 0x48))