scripts: Add SPDX headers
Add SPDX headers indicating the Apache-2.0 license to the scripts in the
scripts directory. This can be assumed due to the presence of the
Apache-2.0 LICENSE file at the top of the project.
Fixes #930
Signed-off-by: David Brown <david.brown@linaro.org>
diff --git a/scripts/imgtool/keys/ed25519.py b/scripts/imgtool/keys/ed25519.py
index f20c5dc..b6367e7 100644
--- a/scripts/imgtool/keys/ed25519.py
+++ b/scripts/imgtool/keys/ed25519.py
@@ -2,6 +2,8 @@
ED25519 key management
"""
+# SPDX-License-Identifier: Apache-2.0
+
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import ed25519