The board no longer uses the `periph_usbdev_hs` module. Therefore, the maximum number of EPs used is that of the USB OTG FS peripheral, which is only 4. This is not sufficient for this test application since the board uses `stdio_cdc_acm`.
Since the stm32f429i-disco uses the USB OTG HS instead of USB OTG FS peripheral, the number of available EPs is sufficient for this application. With the change of defining the largest number of available EPs for USBUS instead of the smallest number, the board can use all EPs of the USB OTG HS peripheral.
This
* renames DEFAULT_xID to USB_xID_TESTING as it is not really a default
(if anyting, the 7D00 is, and it's not that)
* moves the check into Makefile
* generalizes the check to all test PID/VID pairs
* in doing so, fixes the "or" (which would have ruled out warning-free
use of an allocated pid.codes number), and compares to the actual
testing PID rather than the RIOT-peripheral PID
* removes all occurrences of duplicated checks in examples or tests,
leaving definitions only where they are needed
* moves the Kconfig defaults of the usbus_minimal example into the main
Kconfig, as these are good defaults for all cases when USB is enabled
manually
Closes: https://github.com/RIOT-OS/RIOT/issues/12273
The warning issued when the PID and VID are set to the default values should
not be printed on `make clean` and other targets, only with `make all` and it
should be a proper target.
To do: replace shell echos with proper $(warning ..) calls.
