Route EncryptedLocalTransport KV backup/restore through encryption code

Bug: 142227548
Test: Verify the device boots successfully
      Verify EncryptedLocalTransport APK is present
      Verify manual backup/restore using bmgr for LocalTransport and EncryptedLocalTransport
      For LocalTransport (unencrypted) and EncryptedLocalTransport:
        atest CtsBackupTestCases
        atest CtsBackupHostTestCases
        atest GtsBackupTestCases
        atest GtsBackupHostTestCases


Change-Id: Iac3a8a50d7f761442a4b784cfba3a980e900dd7f

packages/EncryptedLocalTransport/AndroidManifest.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (c) 2019 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.encryptedlocaltransport"
+      android:sharedUserId="android.uid.system" >
+
+
+    <application android:allowBackup="false" >
+        <!-- This service does not need to be exported because it shares uid with the system server
+        which is the only client. -->
+        <service android:name=".EncryptedLocalTransportService"
+                 android:permission="android.permission.CONFIRM_FULL_BACKUP"
+                 android:exported="false">
+            <intent-filter>
+                <action android:name="android.backup.TRANSPORT_HOST" />
+            </intent-filter>
+        </service>
+
+    </application>
+</manifest>