Update header to include the license

JIRA: MADLIB-1466

The rat check test discovered that we missed adding the license notice
to a couple of our deep learning files.

Co-authored-by: Ekta Khanna <ekhanna@vmware.com>
diff --git a/src/ports/postgres/modules/deep_learning/test/madlib_keras_fit_multiple.sql_in b/src/ports/postgres/modules/deep_learning/test/madlib_keras_fit_multiple.sql_in
index 9d113b1..2a815ba 100644
--- a/src/ports/postgres/modules/deep_learning/test/madlib_keras_fit_multiple.sql_in
+++ b/src/ports/postgres/modules/deep_learning/test/madlib_keras_fit_multiple.sql_in
@@ -1,3 +1,24 @@
+/* ---------------------------------------------------------------------*//**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ *
+ *//* ---------------------------------------------------------------------*/
+
 m4_include(`SQLCommon.m4')
 m4_changequote(<<<,>>>)
 m4_ifdef(<<<__POSTGRESQL__>>>, -- Skip all fit multiple tests for postgres
diff --git a/src/ports/postgres/modules/utilities/debug.py_in b/src/ports/postgres/modules/utilities/debug.py_in
index 5e288be..05fc880 100644
--- a/src/ports/postgres/modules/utilities/debug.py_in
+++ b/src/ports/postgres/modules/utilities/debug.py_in
@@ -1,3 +1,22 @@
+# coding=utf-8
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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 plpy as plpy_orig
 import time
 from deep_learning.madlib_keras_model_selection import ModelSelectionSchema