backlight/leds: Make two structs static

This patch makes two needlessly global structs static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>

drivers/video/backlight/backlight.c

@@ -164,7 +164,7 @@ static ssize_t backlight_show_actual_brightness(struct device *dev,
 	return rc;
 }
 
-struct class *backlight_class;
+static struct class *backlight_class;
 
 static void bl_device_release(struct device *dev)
 {

drivers/video/backlight/lcd.c

@@ -149,7 +149,7 @@ static ssize_t lcd_show_max_contrast(struct device *dev,
 	return sprintf(buf, "%d\n", ld->props.max_contrast);
 }
 
-struct class *lcd_class;
+static struct class *lcd_class;
 
 static void lcd_device_release(struct device *dev)
 {