[PATCH v3] arch: arm: mach-stm32: Fix copyright

[Benjamin Gaignard]

Uniformize STMicroelectronics copyrights header
Add SPDX identifier

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx>
---
 arch/arm/mach-stm32/board-dt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-stm32/board-dt.c b/arch/arm/mach-stm32/board-dt.c
index e918686e4191..77899ae4b8ed 100644
--- a/arch/arm/mach-stm32/board-dt.c
+++ b/arch/arm/mach-stm32/board-dt.c
@@ -1,5 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Maxime Coquelin 2015
+ * Copyright (C) STMicroelectronics SA 2017
  * Author:  Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>
  * License terms:  GNU General Public License (GPL), version 2
  */
-- 
2.15.0