Fix some race conditions

[HiFiPhile]

Describe the PR

• In cdc_device if read* functions called before tud_ready() transfer will be queued to EP0 cause strange issues.
• Clear _usbd_dev first to ensure tud_ready() return false before driver clean up.
• Introduced by work around possible RP2040 erratum #2492, if both DCD_EVENT_BUS_RESET and DCD_EVENT_SETUP_RECEIVED are in the event queue, setup_count is cleared in bus reset, result _usbd_dev.setup_count-- underflow. I think the best fix would be clear the queue on bus reset.
• Fix STM32F7 FS port build using HS define.