Only call -rerouted callback if displayId changed

This moves the new listener callback method inside
the displayId conditional. Without this, the callback
is invoked for the initial Bubble activity start by
SystemUI.

Test: atest ActivityManagerMultiDisplayTests#testSingleTaskInstanceDisplay
Bug: 127322070
Change-Id: Ie8d0f4cef82ce77c2b806e9349ec60bc296ef726
diff --git a/services/core/java/com/android/server/wm/ActivityStackSupervisor.java b/services/core/java/com/android/server/wm/ActivityStackSupervisor.java
index a8e8c7c5..1ae85b8 100644
--- a/services/core/java/com/android/server/wm/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/wm/ActivityStackSupervisor.java
@@ -2430,17 +2430,17 @@
             final boolean singleTaskInstance = preferredDisplay != null
                     && preferredDisplay.isSingleTaskInstance();
 
-            if (singleTaskInstance) {
+            if (preferredDisplayId != actualDisplayId) {
                 // Suppress the warning toast if the preferredDisplay was set to singleTask.
                 // The singleTaskInstance displays will only contain one task and any attempt to
                 // launch new task will re-route to the default display.
-                mService.getTaskChangeNotificationController()
-                        .notifyActivityLaunchOnSecondaryDisplayRerouted(task.getTaskInfo(),
-                                preferredDisplayId);
-                return;
-            }
+                if (singleTaskInstance) {
+                    mService.getTaskChangeNotificationController()
+                            .notifyActivityLaunchOnSecondaryDisplayRerouted(task.getTaskInfo(),
+                                    preferredDisplayId);
+                    return;
+                }
 
-            if (preferredDisplayId != actualDisplayId) {
                 Slog.w(TAG, "Failed to put " + task + " on display " + preferredDisplayId);
                 // Display a warning toast that we failed to put a task on a secondary display.
                 mService.getTaskChangeNotificationController()