treewide: Remove trailing whitespace

Remove trailing whitespace in files that aren't typically checked.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I8dfffbdeaadfa694fef0404719643803df601065
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50704
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/LICENSES/GPL-2.0-only.txt b/LICENSES/GPL-2.0-only.txt
index 0f3d641..5effc05 100644
--- a/LICENSES/GPL-2.0-only.txt
+++ b/LICENSES/GPL-2.0-only.txt
@@ -2,7 +2,7 @@
 
 Version 2, June 1991
 
-Copyright (C) 1989, 1991 Free Software Foundation, Inc. 
+Copyright (C) 1989, 1991 Free Software Foundation, Inc.
 
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA