Change imgtool version to 1.7.0a1
-# Copyright 2017 Linaro Limited
+# Copyright 2017-2020 Linaro Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# See the License for the specific language governing permissions and
# limitations under the License.
-imgtool_version = "1.6.0"
+imgtool_version = "1.7.0a1"
