nrf/boards/particle_xenon: Enable USB CDC on Particle Xenon board.
#define MICROPY_PY_MACHINE_TEMP (1)
#define MICROPY_PY_RANDOM_HW_RNG (1)
+#define MICROPY_HW_USB_CDC (1)
+
#define MICROPY_HW_HAS_LED (1)
#define MICROPY_HW_LED_TRICOLOR (1)
#define MICROPY_HW_LED_PULLUP (1)
