[PATCH 8/8] Ping : hw/gpio Fix license statements in avr_gpio

[Heecheol Yang]

I send this patch to continue our works discussed about two years ago.
Due to my personal issue, I couldn't noticed that there were some issues
in license statements in the code. 

I am very sorry for my late response and politely  request to check this patch.

Signed-off-by: Heecheol Yang <heecheol.yang@outlook.com>
---
 hw/gpio/avr_gpio.c         | 16 ++++------------
 include/hw/gpio/avr_gpio.h | 15 +++------------
 2 files changed, 7 insertions(+), 24 deletions(-)

diff --git a/hw/gpio/avr_gpio.c b/hw/gpio/avr_gpio.c
index 29252d6ccf..7613ca6493 100644
--- a/hw/gpio/avr_gpio.c
+++ b/hw/gpio/avr_gpio.c
@@ -4,19 +4,11 @@
  * Copyright (C) 2020 Heecheol Yang <heecheol.yang@outlook.com>
  * Copyright (C) 2021 Niteesh Babu G S <niteesh.gs@gmail.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 or
- * (at your option) version 3 of the License.
- *
- * This program is distributed in the hope that 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/>.
+ * This work is licensed under the terms of the GNU GPLv2 or later.
+ * See the COPYING file in the top-level directory.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
+ 
 #include "qemu/osdep.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
diff --git a/include/hw/gpio/avr_gpio.h b/include/hw/gpio/avr_gpio.h
index e982f627ea..e4bfef0def 100644
--- a/include/hw/gpio/avr_gpio.h
+++ b/include/hw/gpio/avr_gpio.h
@@ -3,18 +3,9 @@
  *
  * Copyright (C) 2020 Heecheol Yang <heecheol.yang@outlook.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 or
- * (at your option) version 3 of the License.
- *
- * This program is distributed in the hope that 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/>.
+ * This work is licensed under the terms of the GNU GPLv2 or later.
+ * See the COPYING file in the top-level directory.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef AVR_GPIO_H
-- 
2.34.1