trivial: fix typo "to to" in multiple files

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index e4d9ef0..9f87c99 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -1065,7 +1065,7 @@
 	}
 
 	/*
-	 * Now we have got to calculate how much data we have to to copy. In
+	 * Now we have got to calculate how much data we have to copy. In
 	 * case of a static volume it is fairly easy - the VID header contains
 	 * the data size. In case of a dynamic volume it is more difficult - we
 	 * have to read the contents, cut 0xFF bytes from the end and copy only