Is it compulsory to add the node "virtualcom" to configure a USB virtual com port via USB-OTG-HS for STM32F407 under Zephyr 2.0.99?

I got the following code in DTS from a partner but it cannot be built properly. Error indicates that virtualcom does not have necessary properties. (It is said that the code was compiled in version 1.13.0.)
.......
    usb_cdc: virtualcom {
        label = "CDC_ACM";
    };

    chosen {
        zephyr,console = &usb_cdc;
        zephyr,sram = &sram0;
        zephyr,flash = &flash0;
        zephyr,ccm = &ccm0;
    };
.......
......
&usbotg_hs {
    status = "ok";
};

Moreover, the sample code (usb/console) only requires to add configure entries to defconfig so that I got confused. Thanks for your reply in advance!