Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/tools/bootconfig/include/linux/bootconfig.h b/tools/bootconfig/include/linux/bootconfig.h
new file mode 100644
index 0000000..078cbd2
--- /dev/null
+++ b/tools/bootconfig/include/linux/bootconfig.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BOOTCONFIG_LINUX_BOOTCONFIG_H
+#define _BOOTCONFIG_LINUX_BOOTCONFIG_H
+
+#include "../../../../include/linux/bootconfig.h"
+
+#endif
diff --git a/tools/bootconfig/include/linux/bug.h b/tools/bootconfig/include/linux/bug.h
new file mode 100644
index 0000000..7b65a38
--- /dev/null
+++ b/tools/bootconfig/include/linux/bug.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SKC_LINUX_BUG_H
+#define _SKC_LINUX_BUG_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define WARN_ON(cond)	\
+	((cond) ? printf("Internal warning(%s:%d, %s): %s\n",	\
+			__FILE__, __LINE__, __func__, #cond) : 0)
+
+#endif
diff --git a/tools/bootconfig/include/linux/ctype.h b/tools/bootconfig/include/linux/ctype.h
new file mode 100644
index 0000000..c56ecc1
--- /dev/null
+++ b/tools/bootconfig/include/linux/ctype.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SKC_LINUX_CTYPE_H
+#define _SKC_LINUX_CTYPE_H
+
+#include <ctype.h>
+
+#endif
diff --git a/tools/bootconfig/include/linux/errno.h b/tools/bootconfig/include/linux/errno.h
new file mode 100644
index 0000000..5d9f91e
--- /dev/null
+++ b/tools/bootconfig/include/linux/errno.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SKC_LINUX_ERRNO_H
+#define _SKC_LINUX_ERRNO_H
+
+#include <asm/errno.h>
+
+#endif
diff --git a/tools/bootconfig/include/linux/kernel.h b/tools/bootconfig/include/linux/kernel.h
new file mode 100644
index 0000000..2d93320
--- /dev/null
+++ b/tools/bootconfig/include/linux/kernel.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SKC_LINUX_KERNEL_H
+#define _SKC_LINUX_KERNEL_H
+
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <linux/printk.h>
+
+typedef unsigned short u16;
+typedef unsigned int   u32;
+
+#define unlikely(cond)	(cond)
+
+#define __init
+#define __initdata
+
+#endif
diff --git a/tools/bootconfig/include/linux/memblock.h b/tools/bootconfig/include/linux/memblock.h
new file mode 100644
index 0000000..7862f21
--- /dev/null
+++ b/tools/bootconfig/include/linux/memblock.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _XBC_LINUX_MEMBLOCK_H
+#define _XBC_LINUX_MEMBLOCK_H
+
+#include <stdlib.h>
+
+#define __pa(addr)	(addr)
+#define SMP_CACHE_BYTES	0
+#define memblock_alloc(size, align)	malloc(size)
+#define memblock_free(paddr, size)	free(paddr)
+
+#endif
diff --git a/tools/bootconfig/include/linux/printk.h b/tools/bootconfig/include/linux/printk.h
new file mode 100644
index 0000000..036e667
--- /dev/null
+++ b/tools/bootconfig/include/linux/printk.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SKC_LINUX_PRINTK_H
+#define _SKC_LINUX_PRINTK_H
+
+#include <stdio.h>
+
+#define printk(fmt, ...) printf(fmt, ##__VA_ARGS__)
+
+#define pr_err printk
+#define pr_warn	printk
+#define pr_info	printk
+#define pr_debug printk
+
+#endif
diff --git a/tools/bootconfig/include/linux/string.h b/tools/bootconfig/include/linux/string.h
new file mode 100644
index 0000000..8267af7
--- /dev/null
+++ b/tools/bootconfig/include/linux/string.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SKC_LINUX_STRING_H
+#define _SKC_LINUX_STRING_H
+
+#include <string.h>
+
+/* Copied from lib/string.c */
+static inline char *skip_spaces(const char *str)
+{
+	while (isspace(*str))
+		++str;
+	return (char *)str;
+}
+
+static inline char *strim(char *s)
+{
+	size_t size;
+	char *end;
+
+	size = strlen(s);
+	if (!size)
+		return s;
+
+	end = s + size - 1;
+	while (end >= s && isspace(*end))
+		end--;
+	*(end + 1) = '\0';
+
+	return skip_spaces(s);
+}
+
+#endif