src/: Replace GPL boilerplate with SPDX header

Command used:
perl -i -p0e 's|(\#\#*)[\w*]*.*is[\#\s]*licensed[\#\s]*under[\#\s]*the[\#\s]*terms[\#\s]*of[\#\s]*the[\#\s]*GNU[\#\s]*General[\#\s]*Public[\#\s]*License[\#\s]*version[\#\s]*2,[\#\s]*as[\#\s]*published[\#\s]*by[\#\s]*the[\#\s]*Free[\#\s]*Software[\#\s]*Foundation,[\#\s]*and[\#\s]*may[\#\s]*be[\#\s]*copied,[\#\s]*distributed,[\#\s]*and[\#\s]*modified[\#\s]*under[\#\s]*those[\#\s]*terms.[\#\s]*This[\#\s]*program[\#\s]*is[\#\s]*distributed[\#\s]*in[\#\s]*the[\#\s]*hope[\#\s]*that[\#\s]*it[\#\s]*will[\#\s]*be[\#\s]*useful,[\#\s]*but[\#\s]*WITHOUT[\#\s]*ANY[\#\s]*WARRANTY;[\#\s]*without[\#\s]*even[\#\s]*the[\#\s]*implied[\#\s]*warranty[\#\s]*of[\#\s]*MERCHANTABILITY[\#\s]*or[\#\s]*FITNESS[\#\s]*FOR[\#\s]*A[\#\s]*PARTICULAR[\#\s]*PURPOSE.[\#\s]*See[\#\s]*the[\#\s]*GNU[\#\s]*General[\#\s]*Public[\#\s]*License[\#\s]*for[\#\s]*more[\#\s]*details.\s(#* *\n)*|\1 SPDX-License-Identifier: GPL-2.0-only\n\n|' $(cat filelist)

Change-Id: Ia7ce0a78f96563b8dc0f6eb648c4ba4cefb2b838
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41180
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

3 files changed, 3 insertions, 24 deletions

diff --git a/src/mainboard/emulation/qemu-riscv/Kconfig b/src/mainboard/emulation/qemu-riscv/Kconfig
index 8788f33920..6c8a7eb91a 100644
--- a/src/mainboard/emulation/qemu-riscv/Kconfig
+++ b/src/mainboard/emulation/qemu-riscv/Kconfig
@@ -2,14 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This software is licensed under the terms of the GNU General Public
-## License version 2, as published by the Free Software Foundation, and
-## may be copied, distributed, and modified under those terms.
-##
-## 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.
+## SPDX-License-Identifier: GPL-2.0-only
 
 # To execute, do:
 # util/riscv/make-spike-elf.sh build/coreboot.rom build/coreboot.elf
diff --git a/src/mainboard/emulation/qemu-riscv/Makefile.inc b/src/mainboard/emulation/qemu-riscv/Makefile.inc
index 5c283ab2f1..54b795ff29 100644
--- a/src/mainboard/emulation/qemu-riscv/Makefile.inc
+++ b/src/mainboard/emulation/qemu-riscv/Makefile.inc
@@ -2,14 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This software is licensed under the terms of the GNU General Public
-## License version 2, as published by the Free Software Foundation, and
-## may be copied, distributed, and modified under those terms.
-##
-## 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.
+## SPDX-License-Identifier: GPL-2.0-only
 
 bootblock-y += uart.c
 bootblock-y += rom_media.c
diff --git a/src/mainboard/emulation/qemu-riscv/devicetree.cb b/src/mainboard/emulation/qemu-riscv/devicetree.cb
index 6276a59002..e0ebc9df1f 100644
--- a/src/mainboard/emulation/qemu-riscv/devicetree.cb
+++ b/src/mainboard/emulation/qemu-riscv/devicetree.cb
@@ -2,14 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This software is licensed under the terms of the GNU General Public
-## License version 2, as published by the Free Software Foundation, and
-## may be copied, distributed, and modified under those terms.
-##
-## 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.
+## SPDX-License-Identifier: GPL-2.0-only
 
 chip soc/ucb/riscv
 	device cpu_cluster 0 on end