clk: Tag clk core files with SPDX

These are all GPL-2.0 files per the existing license text. Replace the
boiler plate with the tag.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 1 insertions, 6 deletions

diff --git a/drivers/clk/clk.h b/drivers/clk/clk.h
index 70c0ba6336c1..b02f5e604e69 100644
--- a/drivers/clk/clk.h
+++ b/drivers/clk/clk.h
@@ -1,12 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
- * linux/drivers/clk/clk.h
- *
  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
  * Sylwester Nawrocki <s.nawrocki@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 struct clk_hw;