[msm] Update copyright notice for acpuclock.c

Update copyright notice.  The file was derived from
bootable/bootlaoder/legacy's clock.c which originally had Google
copyright.  Restoring the same.
diff --git a/platform/msm7k/acpuclock.c b/platform/msm7k/acpuclock.c
index 4dffeec..938df99 100755
--- a/platform/msm7k/acpuclock.c
+++ b/platform/msm7k/acpuclock.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (c) 2008, Google Inc.
  * All rights reserved.
  * Copyright (c) 2009, Code Aurora Forum. All rights reserved.
  *