hexagon: Move kernel prototypes out of uapi/asm/setup.h header

The kernel function prototypes are of no use for userspace and
shouldn't get exposed in an uapi header, so let's move them into
an internal header instead.

Signed-off-by: Thomas Huth <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Brian Cain <[e-mail]>
Signed-off-by: Brian Cain <[e-mail]>

arch/hexagon/include/asm/setup.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_HEXAGON_SETUP_H
+#define _ASM_HEXAGON_SETUP_H
+
+#include <linux/init.h>
+#include <uapi/asm/setup.h>
+
+extern char external_cmdline_buffer;
+
+void __init setup_arch_memory(void);
+
+#endif

arch/hexagon/include/uapi/asm/setup.h

···
  * 02110-1301, USA.
  */
 
-#ifndef _ASM_SETUP_H
-#define _ASM_SETUP_H
-
-#ifdef __KERNEL__
-#include <linux/init.h>
-#else
-#define __init
-#endif
+#ifndef _UAPI_ASM_HEXAGON_SETUP_H
+#define _UAPI_ASM_HEXAGON_SETUP_H
 
 #include <asm-generic/setup.h>
-
-extern char external_cmdline_buffer;
-
-void __init setup_arch_memory(void);
 
 #endif