clocksource/drivers/timer-sun5i: Convert to SPDX identifier

The license information clearly states GPL version 2 only. The extra text
which excludes warranties is an excerpt of the corresponding GPLv2 clause
11.

So the SPDX identifier covers it completely.

Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Daniel Lezcano <[email protected]>
Cc: Chen-Yu Tsai <[email protected]>
Cc: Samuel Holland <[email protected]>
Cc: Philipp Zabel <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Daniel Lezcano <[email protected]>

Author: KAGA-KOKO

drivers/clocksource/timer-sun5i.c

@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Allwinner SoCs hstimer driver.
  *
  * Copyright (C) 2013 Maxime Ripard
  *
  * Maxime Ripard <[email protected]>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/clk.h>