libfdt: fix SPDX license identifiers

License identifiers should be machine readable.

According to the SPDX v2.3.0 specification annex E parentheses are not
used in the SPDX identifier field when specifying multiple licenses [1].

[1] https://spdx.github.io/spdx-spec/v2.3/using-SPDX-short-identifiers-in-source-files/

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

lib/utils/libfdt/Makefile.libfdt

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 # Makefile.libfdt
 #
 # This is not a complete Makefile of itself.  Instead, it is designed to

lib/utils/libfdt/fdt.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.

lib/utils/libfdt/fdt.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
+/* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause */
 #ifndef FDT_H
 #define FDT_H
 /*

lib/utils/libfdt/fdt_addresses.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2014 David Gibson <david@gibson.dropbear.id.au>

lib/utils/libfdt/fdt_check.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.

lib/utils/libfdt/fdt_empty_tree.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2012 David Gibson, IBM Corporation.

lib/utils/libfdt/fdt_overlay.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2016 Free Electrons

lib/utils/libfdt/fdt_ro.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.

lib/utils/libfdt/fdt_rw.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.

lib/utils/libfdt/fdt_strerror.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.

lib/utils/libfdt/fdt_sw.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.

lib/utils/libfdt/fdt_wip.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
 /*
  * libfdt - Flat Device Tree manipulation
  * Copyright (C) 2006 David Gibson, IBM Corporation.

lib/utils/libfdt/libfdt.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
+/* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause */
 #ifndef LIBFDT_H
 #define LIBFDT_H
 /*

lib/utils/libfdt/libfdt_env.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
+/* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause */
 #ifndef LIBFDT_ENV_H
 #define LIBFDT_ENV_H
 /*

lib/utils/libfdt/libfdt_internal.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
+/* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause */
 #ifndef LIBFDT_INTERNAL_H
 #define LIBFDT_INTERNAL_H
 /*

lib/utils/libfdt/version.lds

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
+/* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause */
 LIBFDT_1.2 {
 	global:
 		fdt_next_node;