Fix typo in code style script

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/scripts/code_style.py b/scripts/code_style.py
index 068298a..be333f0 100755
--- a/scripts/code_style.py
+++ b/scripts/code_style.py
@@ -68,7 +68,7 @@
 
 def check_style_is_correct(src_file_list: List[str]) -> bool:
     """
-    Check the code style and output a diff foir each file whose style is
+    Check the code style and output a diff for each file whose style is
     incorrect.
     """
     style_correct = True