Add missing synchronized(mLock) into Autofill onServiceDied

Test: N/A
Signed-off-by: v-qianliguo <v-qianliguo@xiaomi.com>
Merged-In: Ic16ed5e4ac507f02e56f9e9cd94d4b4cfb028d69
Change-Id: I5c9640ab0695386effdbaaad7b72e143668af876

services/autofill/java/com/android/server/autofill/Session.java

@@ -1204,7 +1204,9 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
     @Override
     public void onServiceDied(@NonNull RemoteFillService service) {
         Slog.w(TAG, "removing session because service died");
-        forceRemoveSelfLocked();
+        synchronized (mLock) {
+            forceRemoveSelfLocked();
+        }
     }
 
     // AutoFillUiCallback