com.android.nfc_extras is built with java_sdk_library

Remove the biolerplate code using java_sdk_library module type.

Bug: 77575606
Test: m -j

Change-Id: Ie4709b6ebc18bc2e4e26137d4a097d734f4435fe
diff --git a/nfc-extras/Android.bp b/nfc-extras/Android.bp
new file mode 100644
index 0000000..cbacd48
--- /dev/null
+++ b/nfc-extras/Android.bp
@@ -0,0 +1,21 @@
+//
+// Copyright (C) 2018 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.
+//
+
+java_sdk_library {
+    name: "com.android.nfc_extras",
+    srcs: ["java/**/*.java"],
+    api_packages: ["com.android.nfc_extras"],
+}