Update docs regarding STM32C5 USB-CDC support

[srontje]

The current implementation (v3.0.0) for STM32C5 does not support USB-CDC. You should mention that in the notes column on https://github.com/stm32duino/Arduino_Core_STM32#generic-stm32c5-boards with big red marker. Because USB-CDC is the core component of Arduino which everybody expects to work out of the box.

Generic STM32C5 boards

Status	Device(s)	Name	Release	Notes
💚	STM32C552RC STM32C552RE	Generic Board	3.0.0
💚	STM32C562RE	Generic Board	3.0.0

Related line of code:

#if defined(USE_HALV2_DRIVER)
#error "USB library is not yet compatible with HALv2 driver."

https://github.com/stm32duino/Arduino_Core_STM32/blob/main/libraries/USBDevice/inc/usbd_conf.h#L33

[srontje]

I just noticed that USB-HID is also not yet implemented. That should also be mentioned in the notes column. The green heart is surely not appropriate.

[fpistm]

Hi @srontje ,
General purpose are supported. The error message is enough from my point of view.
Anyway if you really think a note should be added. Feel free to provide a PR . The green heart 💚 simply told the mcu is now supported and available in the core. Not that all is supported.