general: Format licenses as per SPDX guidelines

src/common/address_space.cpp

@@ -1,6 +1,5 @@
-// Copyright © 2021 Skyline Team and Contributors (https://github.com/skyline-emu/)
-// Licensed under GPLv3 or any later version
-// Refer to the license.txt file included.
+// SPDX-FileCopyrightText: 2021 Skyline Team and Contributors
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "common/address_space.inc"
 

src/common/address_space.h

@@ -1,6 +1,5 @@
-// Copyright © 2021 Skyline Team and Contributors (https://github.com/skyline-emu/)
-// Licensed under GPLv3 or any later version
-// Refer to the license.txt file included.
+// SPDX-FileCopyrightText: 2021 Skyline Team and Contributors
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #pragma once
 

src/common/address_space.inc

@@ -1,5 +1,5 @@
-// SPDX-License-Identifier: GPLv3 or later
-// Copyright © 2021 Skyline Team and Contributors (https://github.com/skyline-emu/)
+// SPDX-FileCopyrightText: 2021 Skyline Team and Contributors
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "common/address_space.h"
 #include "common/assert.h"

src/common/multi_level_page_table.cpp

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
 #include "common/multi_level_page_table.inc"
 
 namespace Common {

src/common/multi_level_page_table.h

@@ -1,6 +1,5 @@
-// Copyright 2021 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
+// SPDX-FileCopyrightText: 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

src/common/multi_level_page_table.inc

@@ -1,6 +1,5 @@
-// Copyright 2021 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
+// SPDX-FileCopyrightText: 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #ifdef _WIN32
 #include <windows.h>