Put build / run scripts under Apache 2.0 license

The license of the build or execution scripts doesn't affect the license
of the actual program, and we want to explicitly state that these scripts may
be used in any kind of context.

Change-Id: I553925cd88b05903aab52ae1afb093aa9ab9d035
diff --git a/gen_links.sh.inc b/gen_links.sh.inc
index 8a87359..539b398 100644
--- a/gen_links.sh.inc
+++ b/gen_links.sh.inc
@@ -1,6 +1,21 @@
 #!dont_run_this
 # This file is sourced by */gen_links.sh
 
+# Copyright 2017 Harald Welte
+# Copyright 2018 sysmocom - s.f.m.c. GmbH
+#
+# 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.
+
 rm -f .gitignore
 
 gen_link() {