leds: Rename led_set_brightness() to __led_set_brightness()

Rename leds internal interface led_set_brightness() to __led_set_brightness()
to reduce confusion between led_set_brightness() and the external interface
led_brightness_set(). led_brightness_set() cancels the timer and then calls
led_set_brightness().

Signed-off-by: Shuah Khan <shuahkhan@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h
index e77c7f8..d02acd4 100644
--- a/drivers/leds/leds.h
+++ b/drivers/leds/leds.h
@@ -17,7 +17,7 @@
 #include <linux/rwsem.h>
 #include <linux/leds.h>
 
-static inline void led_set_brightness(struct led_classdev *led_cdev,
+static inline void __led_set_brightness(struct led_classdev *led_cdev,
 					enum led_brightness value)
 {
 	if (value > led_cdev->max_brightness)