syscalls/pwritev: Make make check happy

1) Relicense to GPL v2+ for pwritev.h.
2) Add LTP Copyright.

Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>

Author: yangx-jy

testcases/kernel/syscalls/pwritev/pwritev.h

@@ -1,18 +1,9 @@
-/*
-* Copyright (c) 2015 Fujitsu Ltd.
-* Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
-*
-* This program is free software; you can redistribute it and/or modify it
-* under the terms of version 2 of the GNU General Public License as
-* published by the Free Software Foundation.
-*
-* This program is distributed in the hope that it would be useful, but
-* WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-*
-* You should have received a copy of the GNU General Public License
-* alone with this program.
-*/
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Copyright (c) 2015 Fujitsu Ltd.
+ * Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
+ * Copyright (c) Linux Test Project, 2016-2023
+ */
 
 #ifndef PWRITEV_H
 #define PWRITEV_H

testcases/kernel/syscalls/pwritev/pwritev01.c

@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
-* Copyright (c) 2015 Fujitsu Ltd.
-* Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
-*/
+ * Copyright (c) 2015 Fujitsu Ltd.
+ * Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
+ * Copyright (c) Linux Test Project, 2016-2023
+ */
 
 /*\
  * [Description]

testcases/kernel/syscalls/pwritev/pwritev02.c

@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
-* Copyright (c) 2015-2016 Fujitsu Ltd.
-* Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
-*/
+ * Copyright (c) 2015-2016 Fujitsu Ltd.
+ * Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
+ * Copyright (c) Linux Test Project, 2017-2023
+ */
 
 /*\
  * [Description]

testcases/kernel/syscalls/pwritev/pwritev03.c

@@ -2,6 +2,7 @@
 /*
  * Copyright (c) 2018 FUJITSU LIMITED. All rights reserved.
  * Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
+ * Copyright (c) Linux Test Project, 2019-2023
  */
 
 /*\
@@ -92,7 +93,7 @@ static void verify_direct_pwritev(unsigned int n)
 static void setup(void)
 {
 	int dev_fd, ret;
-	
+
 	dev_fd = SAFE_OPEN(tst_device->dev, O_RDWR);
 	SAFE_IOCTL(dev_fd, BLKSSZGET, &ret);
 	SAFE_CLOSE(dev_fd);