scsi: aacraid: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Also, a break statement is properly aligned.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aacraid/aachba.c

@@ -2892,6 +2892,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 					    !(dev->raw_io_64) ||
 					    ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
 						break;
+					/* fall through */
 				case INQUIRY:
 				case READ_CAPACITY:
 				case TEST_UNIT_READY:
@@ -2966,6 +2967,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		/* Issue FIB to tell Firmware to flush it's cache */
 		if ((aac_cache & 6) != 2)
 			return aac_synchronize(scsicmd);
+		/* fall through */
 	case INQUIRY:
 	{
 		struct inquiry_data inq_data;
@@ -3319,8 +3321,9 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			       min_t(size_t,
 				     sizeof(dev->fsa_dev[cid].sense_data),
 				     SCSI_SENSE_BUFFERSIZE));
-		break;
+			break;
 		}
+		/* fall through */
 	case RESERVE:
 	case RELEASE:
 	case REZERO_UNIT: