power: reset: remove unneeded semicolon

Fixes coccicheck warning:
drivers/power/reset/vexpress-poweroff.c:136:2-3: Unneeded semicolon

Signed-off-by: dongjian <[e-mail]>
Signed-off-by: Sebastian Reichel <[e-mail]>

drivers/power/reset/vexpress-poweroff.c

···
 	case FUNC_REBOOT:
 		ret = _vexpress_register_restart_handler(&pdev->dev);
 		break;
-	};
+	}
 
 	return ret;
 }