Add auto rotation icon resource.

Change-Id: Ica60e4239439b01f1545bae6f1d809e29a4a9033
Bug: 248428429
Test: manual
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e368d09..d64889a 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1273,7 +1273,7 @@
         <activity
             android:name="Settings$SmartAutoRotateSettingsActivity"
             android:label="@string/accelerometer_title"
-            android:icon="@drawable/ic_homepage_notification"
+            android:icon="@drawable/ic_screen_rotation_24dp"
             android:exported="true">
             <intent-filter android:priority="1">
                 <action android:name="android.settings.AUTO_ROTATE_SETTINGS" />