Add copyright header to ld version script

Summary: Fixes a ShipIt warning about this.

Differential Revision: D48992315

java/yogajni.version

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 {
   global:
     JNI_OnLoad;