use case validator: add AOSP headers

Bug: 257922898
Test: make
Change-Id: I46a7f949bd90df117b1f94e1ca4b36db95776bc4
diff --git a/media/libaudiousecasevalidation/UsecaseLookup.cpp b/media/libaudiousecasevalidation/UsecaseLookup.cpp
index 9def180..01e667f 100644
--- a/media/libaudiousecasevalidation/UsecaseLookup.cpp
+++ b/media/libaudiousecasevalidation/UsecaseLookup.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * 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.
+ */
 #define LOG_TAG "UsecaseLookup"
 // #define LOG_NDEBUG 0