backlight: tdo24m: Add blank line after declarations

Fixed the following checkpatch warning.

WARNING: Missing a blank line after declarations

Signed-off-by: Jingoo Han <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/video/backlight/tdo24m.c

···
 static int tdo24m_set_power(struct lcd_device *ld, int power)
 {
 	struct tdo24m *lcd = lcd_get_data(ld);
+
 	return tdo24m_power(lcd, power);
 }
 
 static int tdo24m_get_power(struct lcd_device *ld)
 {
 	struct tdo24m *lcd = lcd_get_data(ld);
+
 	return lcd->power;
 }