libcopybit: Correct AOSP license marking.

Change-Id: I6beffe8a33605132468a76f4ef4221266b954ea5
diff --git a/libcopybit/Android.mk b/libcopybit/Android.mk
index 55d421b..73bfa86 100644
--- a/libcopybit/Android.mk
+++ b/libcopybit/Android.mk
@@ -1,4 +1,4 @@
-# Copyright (C) 2012 The Android Open Source Project
+# Copyright (C) 2008 The Android Open Source Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.