Move backup encryption to separate APK

Test: atest -c --rebuild-module-info BackupEncryptionRoboTests
Change-Id: I5a8ac3a9c010bd3c516464dee333cef406c5dcfa
diff --git a/packages/BackupEncryption/AndroidManifest.xml b/packages/BackupEncryption/AndroidManifest.xml
new file mode 100644
index 0000000..a705df5
--- /dev/null
+++ b/packages/BackupEncryption/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (c) 2016 Google Inc.
+ *
+ * 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.server.backup.encryption"
+    android:sharedUserId="android.uid.system" >
+
+    <application android:allowBackup="false" />
+</manifest>