sm6225-common: overlay: Enable peak refresh rate toggle in Settings

Change-Id: Ia206c495e3f40f583f8cd35e7753c30a5e917656
diff --git a/overlay/SystemUIResCommon/res/values/config.xml b/overlay/SystemUIResCommon/res/values/config.xml
index de547a8..556b064 100644
--- a/overlay/SystemUIResCommon/res/values/config.xml
+++ b/overlay/SystemUIResCommon/res/values/config.xml
@@ -9,4 +9,7 @@
 
     <!-- Whether to show min refresh rate in display settings -->
     <bool name="config_show_min_refresh_rate_switch">true</bool>
+
+    <!-- Whether to show peak refresh rate in display settings -->
+    <bool name="config_show_peak_refresh_rate_switch">true</bool>
 </resources>