Specify FLAG_IMMUTABLE when creating PendingIntent am: 6f7d23a503

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Car/SystemUpdater/+/15113943

Change-Id: I3d2d80ed53c5726a35a7d1ca43cafe9c45c127f4
diff --git a/src/com/android/car/systemupdater/UpdateLayoutFragment.java b/src/com/android/car/systemupdater/UpdateLayoutFragment.java
index ff56371..0ba5b90 100644
--- a/src/com/android/car/systemupdater/UpdateLayoutFragment.java
+++ b/src/com/android/car/systemupdater/UpdateLayoutFragment.java
@@ -279,7 +279,7 @@
                         context,
                         /* requestCode= */ 0,
                         intent,
-                        PendingIntent.FLAG_UPDATE_CURRENT);
+                        PendingIntent.FLAG_IMMUTABLE | PendingIntent.FLAG_UPDATE_CURRENT);
 
         return new Notification.Builder(context, NOTIFICATION_CHANNEL_ID)
                 .setVisibility(Notification.VISIBILITY_PUBLIC)