nvdimm/btt: fix btt_blk_cleanup() kernel-doc

Correct the function parameters to prevent kernel-doc warnings:

btt.c:1567: warning: Function parameter or member 'nd_region' not described in 'btt_init'
btt.c:1567: warning: Excess function parameter 'maxlane' description in 'btt_init'

Signed-off-by: Randy Dunlap <[email protected]>
Cc: Vishal Verma <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Ira Weiny <[email protected]>
Cc:  <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ira Weiny <[email protected]>

Author: rddunlap

drivers/nvdimm/btt.c

@@ -1545,7 +1545,7 @@ static void btt_blk_cleanup(struct btt *btt)
  * @rawsize:	raw size in bytes of the backing device
  * @lbasize:	lba size of the backing device
  * @uuid:	A uuid for the backing device - this is stored on media
- * @maxlane:	maximum number of parallel requests the device can handle
+ * @nd_region:	&struct nd_region for the REGION device
  *
  * Initialize a Block Translation Table on a backing device to provide
  * single sector power fail atomicity.