STM32F1 family does not support `GET_REPORT` requests

[FFY00]

Currently, we stalling the requests, but the USB HID spec says this request is mandatory. In real-world applications, this is not an issue for vendor reports, but is an issue for keyboard reports, which we do not yet support in any target.

[perigoso]

hm, right, i saw your convo in the usb hacking channel.

[perigoso]

this also applies to efm32