iio: core: Sort headers

Sort the headers in alphabetic order in order to ease
the maintenance for this part.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230118074828.66155-2-andriy.shevchenko@linux.intel.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/industrialio-core.c

@@ -8,30 +8,32 @@
 
 #define pr_fmt(fmt) "iio-core: " fmt
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/idr.h>
-#include <linux/kdev_t.h>
-#include <linux/err.h>
+#include <linux/anon_inodes.h>
+#include <linux/cdev.h>
+#include <linux/debugfs.h>
 #include <linux/device.h>
+#include <linux/err.h>
 #include <linux/fs.h>
+#include <linux/idr.h>
+#include <linux/kdev_t.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
 #include <linux/poll.h>
 #include <linux/property.h>
 #include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/cdev.h>
 #include <linux/slab.h>
-#include <linux/anon_inodes.h>
-#include <linux/debugfs.h>
-#include <linux/mutex.h>
-#include <linux/iio/iio.h>
+#include <linux/wait.h>
+
+#include <linux/iio/buffer.h>
+#include <linux/iio/buffer_impl.h>
+#include <linux/iio/events.h>
 #include <linux/iio/iio-opaque.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
 #include "iio_core.h"
 #include "iio_core_trigger.h"
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/buffer_impl.h>
 
 /* IDA to assign each registered device a unique id */
 static DEFINE_IDA(iio_ida);