Add file io benchmark program

Bug: 195490345
Test: benchmark_example.sh aosp_oriole_pkvm-userdebug
Change-Id: Idd9f8e97b16d83120bcb54551832eacbbd0670f7
diff --git a/tests/benchmark/AndroidManifest.xml b/tests/benchmark/AndroidManifest.xml
new file mode 100644
index 0000000..9fd7347
--- /dev/null
+++ b/tests/benchmark/AndroidManifest.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="com.android.microdroid.benchmark">
+    <application android:label="Microdroid Filesystem Benchmark" />
+</manifest>