flash: Add Apache license
In prep for OSS releasing, this adds the Apache license to the header of the
file.
Change-Id: Id6fc35a44fafead3cfb57f36b1064694106086e6
diff --git a/flash.sh b/flash.sh
index 1669d17..21b8dbd 100755
--- a/flash.sh
+++ b/flash.sh
@@ -1,4 +1,18 @@
#!/bin/bash
+#
+# Copyright 2018 Google LLC
+#
+# 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
+#
+# https://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.
set -e
