block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors

The block layer calling convention is blk_queue_<limit name>.
blk_queue_max_sectors predates this practice, leading to some confusion.
Rename the function to appropriately reflect that its intended use is to
set max_hw_sectors.

Also introduce a temporary wrapper for backwards compability.  This can
be removed after the merge window is closed.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

drivers/scsi/scsi_scan.c

diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 012f73a..5d9b513 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -879,7 +879,7 @@
 	 * broken RA4x00 Compaq Disk Array
 	 */
 	if (*bflags & BLIST_MAX_512)
-		blk_queue_max_sectors(sdev->request_queue, 512);
+		blk_queue_max_hw_sectors(sdev->request_queue, 512);
 
 	/*
 	 * Some devices may not want to have a start command automatically