scsi: smartpqi: Update attribute name to `driver_version`

The file name in the documentation is currently incorrect, so fix it.

Link: https://lore.kernel.org/r/fe264d62-0371-ea59-b66a-6d855290ce65@molgen.mpg.de
Fixes: 6d90615f ("scsi: smartpqi: add sysfs entries")
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Documentation/scsi/smartpqi.txt

@@ -29,7 +29,7 @@ smartpqi specific entries in /sys
   smartpqi host attributes:
   -------------------------
   /sys/class/scsi_host/host*/rescan
-  /sys/class/scsi_host/host*/version
+  /sys/class/scsi_host/host*/driver_version
 
   The host rescan attribute is a write only attribute. Writing to this
   attribute will trigger the driver to scan for new, changed, or removed