Update headers

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/scripts/config.pl b/scripts/config.pl
index 5dd89d2..ca02b90 100755
--- a/scripts/config.pl
+++ b/scripts/config.pl
@@ -2,19 +2,8 @@
 # Backward compatibility redirection
 
 ## Copyright The Mbed TLS Contributors
-## SPDX-License-Identifier: Apache-2.0
+## SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 ##
-## 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.
 
 my $py = $0;
 $py =~ s/\.pl$/.py/ or die "Unable to determine the name of the Python script";