Add DTV files

proprietary/etc/permissions/com.google.android.tv.installed.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2015 Google Inc. All rights reserved.
+
+     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.
+-->
+<permissions>
+    <feature name="com.google.android.tv.installed" />
+</permissions>

proprietary/etc/permissions/com.motorola.hardware.dtv.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<permissions>
+  <feature name="com.motorola.hardware.dtv"/>
+</permissions>

proprietary/etc/permissions/mot_dtv_permissions.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- This is the standard set of features for devices that support MobileTV solution. -->
+<permissions>
+    <permission name="com.motorola.dtv.permission.ACCESS_DTV">
+        <group gid="oem_5019" />
+    </permission>
+</permissions>