[PATCH 4/5] license: Update deprecated SPDX tag GPL-2.0+ to GPL-2.0-or-later

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

The 'GPL-2.0+' license identifier has been deprecated since license
list version 2.0rc2 [1] and replaced by the 'GPL-2.0-or-later' [2]
tag.

[1] https://spdx.org/licenses/GPL-2.0+.html
[2] https://spdx.org/licenses/GPL-2.0-or-later.html

Mechanical patch running:

  $ sed -i -e s/GPL-2.0+/GPL-2.0-or-later/ \
    $(git grep -l 'SPDX-License-Identifier: GPL-2.0+$')

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/riscv/cpu-param.h | 2 +-
 target/s390x/cpu-param.h | 2 +-
 hw/nvram/fw_cfg-acpi.c   | 2 +-
 hw/virtio/virtio-acpi.c  | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/target/riscv/cpu-param.h b/target/riscv/cpu-param.h
index 1fbd64939d..25686192c0 100644
--- a/target/riscv/cpu-param.h
+++ b/target/riscv/cpu-param.h
@@ -2,7 +2,7 @@
  * RISC-V cpu parameters for qemu.
  *
  * Copyright (c) 2017-2018 SiFive, Inc.
- * SPDX-License-Identifier: GPL-2.0+
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef RISCV_CPU_PARAM_H
diff --git a/target/s390x/cpu-param.h b/target/s390x/cpu-param.h
index 11d23b600d..a05ffcf78d 100644
--- a/target/s390x/cpu-param.h
+++ b/target/s390x/cpu-param.h
@@ -2,7 +2,7 @@
  * S/390 cpu parameters for qemu.
  *
  * Copyright (c) 2009 Ulrich Hecht
- * SPDX-License-Identifier: GPL-2.0+
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef S390_CPU_PARAM_H
diff --git a/hw/nvram/fw_cfg-acpi.c b/hw/nvram/fw_cfg-acpi.c
index 58cdcd3121..2e6ef89b98 100644
--- a/hw/nvram/fw_cfg-acpi.c
+++ b/hw/nvram/fw_cfg-acpi.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Add fw_cfg device in DSDT
  *
diff --git a/hw/virtio/virtio-acpi.c b/hw/virtio/virtio-acpi.c
index 230a669500..85becef03c 100644
--- a/hw/virtio/virtio-acpi.c
+++ b/hw/virtio/virtio-acpi.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * virtio ACPI Support
  *
-- 
2.45.2