sdk: Make it REUSE compatible

Change-Id: Iba2bcaf5e677eafebc48c6aca3d3625f821d6e27

lib/Android.bp

@@ -1,17 +1,6 @@
 //
-// Copyright (C) 2019 The LineageOS 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.
+// SPDX-FileCopyrightText: 2019 The LineageOS Project
+// SPDX-License-Identifier: Apache-2.0
 //
 
 lineage_sdk_lib_src = "src/java/org/lineageos/lib/"