Add permission to battery tests

Bug: 150765382
Test: atest BatterySaverLocationTest
Change-Id: I58b1a05ea267816729156043b4e6d482fb0dcc4d
diff --git a/tests/tests/batterysaving/AndroidManifest.xml b/tests/tests/batterysaving/AndroidManifest.xml
index 9f326e0..55e9050 100755
--- a/tests/tests/batterysaving/AndroidManifest.xml
+++ b/tests/tests/batterysaving/AndroidManifest.xml
@@ -21,6 +21,7 @@
     <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"/>
     <!-- Needed to whitelist package to be able to avoid request throttling. -->
     <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
+    <uses-permission android:name="android.permission.READ_DEVICE_CONFIG" />
 
     <application>
         <uses-library android:name="android.test.runner" />
@@ -33,4 +34,4 @@
             android:value="com.android.cts.runner.CtsTestRunListener" />
     </instrumentation>
 
-</manifest>
\ No newline at end of file
+</manifest>