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>
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index a7ecb43..6416b26 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -754,7 +754,7 @@
 	blk_queue_max_phys_segments(queue, MAX_PHYS_SEGMENTS);
 	blk_queue_max_hw_segments(queue, MAX_HW_SEGMENTS);
 	blk_queue_max_segment_size(queue, BLK_MAX_SEGMENT_SIZE);
-	blk_queue_max_sectors(queue, BLK_SAFE_MAX_SECTORS);
+	blk_queue_max_hw_sectors(queue, BLK_SAFE_MAX_SECTORS);
 
 	gendisk = alloc_disk(1);
 	if (!gendisk) {