backlight: lp855x: 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/lp855x_bl.c

···
 
 	} else if (lp->mode == REGISTER_BASED) {
 		u8 val = bl->props.brightness;
+
 		lp855x_write_byte(lp, lp->cfg->reg_brightness, val);
 	}
 
···
 				struct device_attribute *attr, char *buf)
 {
 	struct lp855x *lp = dev_get_drvdata(dev);
+
 	return scnprintf(buf, PAGE_SIZE, "%s\n", lp->chipname);
 }