Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index 11eb8ef..d2d12ab 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -968,7 +968,7 @@
 			 * contains garbage because of a power cut during erase
 			 * operation. So we just schedule this PEB for erasure.
 			 *
-			 * Besides, in case of NOR flash, we deliberatly
+			 * Besides, in case of NOR flash, we deliberately
 			 * corrupt both headers because NOR flash erasure is
 			 * slow and can start from the end.
 			 */