imgtool: Add explicit license declarations
Although these files are likely implicitly licensed under the Apache 2.0
license because of the LICENSE file for this project, make this explicit
in these files.
Signed-off-by: David Brown <david.brown@linaro.org>
diff --git a/scripts/imgtool.py b/scripts/imgtool.py
index 5c95c91..bc67252 100755
--- a/scripts/imgtool.py
+++ b/scripts/imgtool.py
@@ -1,4 +1,18 @@
#! /usr/bin/env python3
+#
+# Copyright 2017 Linaro Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
import argparse
from imgtool import keys