Use correct USB version field.

Prevents dmesg errors like:
 kernel: usb 1-4.4.4: unable to get BOS descriptor

Thanks to zyp on ##stm32
bcdDevice is a developer provided version field

So use it as such.  Start with version 1, not my mistyped copy of a usb
2.0 bcdVersion field.
Stable tmcpoke python for a while