Treewide: Fix incorrect SPDX license strings
These strings didn't match the license names exactly, so update them
to match.
Change-Id: Ib946eb15ca5fa64cbd6b657350b989b4a4c1b7b7
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80583
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
diff --git a/.clang-format b/.clang-format
index efd1065..47210ae 100644
--- a/.clang-format
+++ b/.clang-format
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: GPL-2.0-only
#
# clang-format configuration file. Intended for clang-format >= 16.
#