Update documentation of HDIO_DRIVE_RESET ioctl

Alter the entry for HDIO_DRIVE_RESET in Documentation/ioctl/hdio.txt to
reflect a functional change in the driver.  Besides, the entry has been
inaccurate before.
Signed-off-by: NElias Oltmanns <eo@nebensachen.de>
Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: "Randy Dunlap" <randy.dunlap@oracle.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Documentation/ioctl/hdio.txt

@@ -511,9 +511,8 @@ HDIO_DRIVE_RESET		execute a device reset
 
 	notes:
 
-	  Abort any current command, prevent anything else from being
-	  queued, execute a reset on the device, and issue BLKRRPART
-	  ioctl on the block device.
+	  Execute a reset on the device as soon as the current IO
+	  operation has completed.
 
 	  Executes an ATAPI soft reset if applicable, otherwise
 	  executes an ATA soft reset on the controller.