Enable AutoPowerModes

The doc says that this should be enabled only if you a GCM or something
alike. So possibly we don't want this on FOSS/Vanilla variant

Fixes https://github.com/phhusson/treble_experimentations/issues/40
diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index a333491..f8011d9 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -13,4 +13,6 @@
 	<string-array translatable="false" name="config_tether_bluetooth_regexs">
 		<item>"bt-pan"</item>
 	</string-array>
+
+	<bool name="config_enableAutoPowerModes">true</bool>
 </resources>