An alternative device configuration descriptor is required if multiple protocols, e.g. CDC ECM and RNDIS, should be used with same device interface. This commit is a prerequisite for the support of tinyusb netdev driver.
The commit includes the following changes:
- Remaining CONFIG_* symbols are moved to tinyusb_descriptors.h to be visible in all source files.
- Debug output is added to some descriptor callbacks.
- The conditional definitions of CFG_* symbols are changed to unconditional definitions to ensure that Kconfig CONFIG_* symbols are always used.
If the STM32 MCU does not have an internal D+ pullup and there is no dedicated GPIO on the board to simulate a USB disconnect, the D+ GPIO
has to be temporarily configured as an output and pushed down to simulate a disconnect/connect cycle to allow the host to recognize the device. This is done correctly in `cpu/stm32/periph/usbdev_fs.c` but not in tinyUSB STM32 hardware driver. That is, pressing the RESET button doesn't reset the USB connection.
fixup! pkg/tinyusb: fix reset for STM32 boards without internal D+ pullup
The commit 98478e02fe59902e82d6a80ad4219b0917d0b765 removed the setting of the CFG_TUD_MAX_SPEED define to OPT_MODE_DEFAULT_SPEED. This setting is usually not required since CFG_TUD_MAX_SPEED is determined from CFG_TUSB_RHPORT{0,1}_MODE. However, this does not work for STM32F429I-DISC1 where the HS port is used via the internal FS-PHY. Therefore the default speed setting is added again.
`CFG_TUD_MAX_SPEED` definition isn't required since tinyUSB derives it from `TUD_RHPORT_MODE` if not defined or uses the maximum speed the MCU supports by default.
