leds: pwm: Reorder include files to alphabetic order

Reorder include files to alphabetic order to simplify maintenance

No functional change.

Signed-off-by: LI Qingwu <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/leds/leds-pwm.c

···
  * based on leds-gpio.c by Raphael Assenat <[e-mail]>
  */
 
-#include <linux/gpio/consumer.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/of.h>
-#include <linux/leds.h>
 #include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/slab.h>