Input: lm8333 - add missing linux/input.h include

We are going to clean up matrix_keymap.h from unnecessary includes,
so the driver needs to include API that it uses directly.

Also let's sort includes alphabetically and drop unneeded irq.h

Reviewed-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/keyboard/lm8333.c

···
  * Copyright (C) 2012 Wolfram Sang, Pengutronix <[e-mail]>
  */
 
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/irq.h>
 #include <linux/i2c.h>
-#include <linux/interrupt.h>
+#include <linux/input.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/input/lm8333.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
 
 #define LM8333_FIFO_READ		0x20
 #define LM8333_DEBOUNCE			0x22