power: supply: max8997-charger: remove unneeded semicolon

Fix the following coccicheck warnings:

./drivers/power/supply/max8997_charger.c:266:3-4: Unneeded semicolon.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/max8997_charger.c

@@ -263,7 +263,7 @@ static int max8997_battery_probe(struct platform_device *pdev)
 		if (ret) {
 			dev_err(&pdev->dev, "failed to register extcon notifier\n");
 			return ret;
-		};
+		}
 	}
 
 	return 0;