cxd56: Disable HID and MIDI
cxd56: Disable HID and MIDI

These are already disabled via the USB_DEVICES setting, but the code is
included anyway.

adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython