clk: berlin: switch to SPDX license identifier

Use the appropriate SPDX license identifier and drop the previous
license text.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
diff --git a/drivers/clk/berlin/berlin2-div.h b/drivers/clk/berlin/berlin2-div.h
index e835ddf..d4da643 100644
--- a/drivers/clk/berlin/berlin2-div.h
+++ b/drivers/clk/berlin/berlin2-div.h
@@ -1,20 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2014 Marvell Technology Group Ltd.
  *
  * Alexandre Belloni <alexandre.belloni@free-electrons.com>
  * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #ifndef __BERLIN2_DIV_H
 #define __BERLIN2_DIV_H