doc: release-notes/3.3: add bits on I3C

This adds a few bits on I3C subsystem.

Signed-off-by: Daniel Leung <[email protected]>

Author: dcpleung

doc/hardware/peripherals/i3c.rst

@@ -358,5 +358,6 @@ API Reference
 .. doxygengroup:: i3c_interface
 .. doxygengroup:: i3c_ccc
 .. doxygengroup:: i3c_addresses
+.. doxygengroup:: i3c_target_device
 
 .. _I3C Specification: https://www.mipi.org/specifications/i3c-sensor-specification

doc/releases/release-notes-3.3.rst

@@ -749,6 +749,14 @@ Drivers and Sensors
 
 * I3C
 
+  * Added a new target device API :c:func:`i3c_target_tx_write` to
+    explicit write to TX FIFO.
+
+  * GETMRL and GETMWL are both optional in :c:func:`i3c_device_basic_info_get` as
+    MRL and MWL are optional according to I3C specification.
+
+  * Added a new driver to support Cadence I3C controller.
+
 * IEEE 802.15.4
 
 * Interrupt Controller