initramfs: Sort headers alphabetically

Sorting headers alphabetically helps locating duplicates, and makes it
easier to figure out where to insert new headers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260331070519.5974-4-ddiss@suse.de
Reviewed-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>

init/initramfs.c

@@ -1,25 +1,25 @@
 // SPDX-License-Identifier: GPL-2.0
-#include <linux/init.h>
 #include <linux/async.h>
-#include <linux/export.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
 #include <linux/delay.h>
-#include <linux/string.h>
 #include <linux/dirent.h>
-#include <linux/syscalls.h>
-#include <linux/utime.h>
+#include <linux/export.h>
+#include <linux/fcntl.h>
 #include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/init_syscalls.h>
 #include <linux/kstrtox.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/namei.h>
-#include <linux/init_syscalls.h>
-#include <linux/umh.h>
-#include <linux/security.h>
 #include <linux/overflow.h>
+#include <linux/security.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/syscalls.h>
+#include <linux/types.h>
+#include <linux/umh.h>
+#include <linux/utime.h>
 
 #include "do_mounts.h"
 #include "initramfs_internal.h"