mtd: spelling fixes

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index e601672..d3fabd1 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -770,7 +770,7 @@
 
 	/*
 	 * Set up the new "super" device's MTD object structure, check for
-	 * incompatibilites between the subdevices.
+	 * incompatibilities between the subdevices.
 	 */
 	concat->mtd.type = subdev[0]->type;
 	concat->mtd.flags = subdev[0]->flags;