leds: fix sparse warnings due to missing static

drivers/leds/led-core.c:56:6: sparse: symbol 'led_blink_setup' was not declared. Should it be static?
drivers/leds/led-triggers.c:233:6: sparse: symbol 'led_trigger_blink_setup' was not declared. Should it be static?

Reported-by: Fengguang Wu <wfg@linux.intel.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>

drivers/leds/led-core.c

@@ -53,7 +53,7 @@ static void led_set_software_blink(struct led_classdev *led_cdev,
 }
 
 
-void led_blink_setup(struct led_classdev *led_cdev,
+static void led_blink_setup(struct led_classdev *led_cdev,
 		     unsigned long *delay_on,
 		     unsigned long *delay_off)
 {

drivers/leds/led-triggers.c

@@ -230,7 +230,7 @@ void led_trigger_event(struct led_trigger *trig,
 }
 EXPORT_SYMBOL_GPL(led_trigger_event);
 
-void led_trigger_blink_setup(struct led_trigger *trig,
+static void led_trigger_blink_setup(struct led_trigger *trig,
 			     unsigned long *delay_on,
 			     unsigned long *delay_off,
 			     int oneshot,