Add flag override to fix test failure

The failure is because of the flag rollback.

Fix: 317704394
Test: atest WmTests:ClientLifecycleManagerTests
Change-Id: Ie23ad3656fe59128562808d8334564602774d57a
diff --git a/services/tests/wmtests/src/com/android/server/wm/ClientLifecycleManagerTests.java b/services/tests/wmtests/src/com/android/server/wm/ClientLifecycleManagerTests.java
index c757457..6dfd607 100644
--- a/services/tests/wmtests/src/com/android/server/wm/ClientLifecycleManagerTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/ClientLifecycleManagerTests.java
@@ -217,6 +217,8 @@
 
     @Test
     public void testDispatchPendingTransactions() throws RemoteException {
+        mSetFlagsRule.enableFlags(FLAG_BUNDLE_CLIENT_TRANSACTION_FLAG);
+
         mLifecycleManager.mPendingTransactions.put(mClientBinder, mTransaction);
 
         mLifecycleManager.dispatchPendingTransactions();