genirq/irq_sim: Order headers alphabetically

For better readability and maintenance keep headers in alphabetical
order.

Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Bartosz Golaszewski

kernel/irq/irq_sim.c

@@ -4,10 +4,10 @@
  * Copyright (C) 2020 Bartosz Golaszewski <[email protected]>
  */
 
+#include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/irq_sim.h>
 #include <linux/irq_work.h>
-#include <linux/interrupt.h>
 #include <linux/slab.h>
 
 struct irq_sim_work_ctx {