doc: release-notes 3.3: Add note on nrf52840dongle UART to USB CDC
Adds a note that the nrf52840dongle_nrf52840 board has switched
from the default console being the unconnected UART to USB CDC.
@@ -352,6 +352,10 @@ Boards & SoC Support
Note that MCUboot and MCUboot image updates from pre-Zephyr 3.3 might be
incompatible with Zephyr 3.3 onwards and vice versa.
+ * The default console for the ``nrf52840dongle_nrf52840`` board has been
+ changed from physical UART (which is not connected to anything on the
+ board) to use USB CDC instead.
+
* Made these changes in other boards:
* The nrf52_bsim (natively simulated nRF52 device with BabbleSim) now models
