Disable backup

Disable all backup

Bug:16676574
Change-Id: Id7dc54529be7037489928e679627cc99346fe055
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 9b6a12f..de59c06 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -42,6 +42,7 @@
             android:persistent="true"
             android:label="@string/telecommAppLabel"
             android:icon="@mipmap/ic_launcher_phone"
+            android:allowBackup="false"
             android:supportsRtl="true">
 
         <!-- CALL vs CALL_PRIVILEGED vs CALL_EMERGENCY