block: Consolidate phys_segment and hw_segment limits

Except for SCSI no device drivers distinguish between physical and
hardware segment limits.  Consolidate the two into a single segment
limit.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 7bd7b2f..b70f0fc 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -1518,8 +1518,7 @@
 			break;
 		}
 		disk->queue = q;
-		blk_queue_max_hw_segments(q, CARM_MAX_REQ_SG);
-		blk_queue_max_phys_segments(q, CARM_MAX_REQ_SG);
+		blk_queue_max_segments(q, CARM_MAX_REQ_SG);
 		blk_queue_segment_boundary(q, CARM_SG_BOUNDARY);
 
 		q->queuedata = port;