updater_sample: Move to Soong.

Test: Follow the steps in "Running tests" in updater_sample/README.md.
Change-Id: I70c3239e3daea0dcdadf02f68abe7d6aafa67a2e
diff --git a/updater_sample/Android.bp b/updater_sample/Android.bp
new file mode 100644
index 0000000..0d209bb
--- /dev/null
+++ b/updater_sample/Android.bp
@@ -0,0 +1,35 @@
+// 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.
+
+android_app {
+    name: "SystemUpdaterSample",
+    sdk_version: "system_current",
+    privileged: true,
+
+    srcs: ["src/**/*.java"],
+
+    static_libs: [
+        "guava",
+    ],
+
+    optimize: {
+        // TODO(b/112462307): proguard_flags_files is not picked up by Soong.
+        // proguard_flags_files: [
+        //     "proguard.flags",
+        // ],
+        enabled: false,
+    },
+
+    resource_dirs: ["res"],
+}