Add SPDX header to source code files

Author: fincs

docs/groups.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 
 /*! @defgroup core Core

docs/pages.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 
 /*! @page license License

include/calico.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 
 // Common types and definitions

include/calico/arm/cache.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 #if __ARM_ARCH < 5
 #error "This header is for ARMv5+ only"

include/calico/arm/common.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 #include "../types.h"
 #include "psr.h"

include/calico/arm/cp15.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 
 /*! @addtogroup cache

include/calico/arm/mpu.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 #if __ARM_ARCH < 5
 #error "This header is for ARMv5+ only"

include/calico/arm/psr.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 
 /*! @addtogroup arm

include/calico/asm.inc

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 
 #if __ARM_ARCH_4T__

include/calico/dev/ar6k.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: ZPL-2.1
+// SPDX-FileCopyrightText: Copyright fincs, devkitPro
 #pragma once
 #include "ar6k/base.h"
 #include "ar6k/bmi.h"