applications: nrf_desktop: doc: dfu_mcumgr: align with IronSide SE

Updated the DFU MCUmgr application module that is part of the
nRF Desktop application to align with the IronSide SE architecture
for the nRF54H20 SoC.

Ref: NCSDK-35488

Signed-off-by: Kamil Piszczek <[email protected]>

Author: kapi-no

applications/nrf_desktop/doc/dfu_mcumgr.rst

@@ -69,8 +69,11 @@ Make sure that the DFU lock utility is enabled if your nRF Desktop application c
 You cannot use this module with the :ref:`caf_ble_smp`.
 In other words, you cannot simultaneously enable the :ref:`CONFIG_DESKTOP_DFU_MCUMGR_ENABLE <config_desktop_app_options>` option and the :kconfig:option:`CONFIG_CAF_BLE_SMP` Kconfig option.
 
+Currently, this module supports only one bootloader backend, the MCUboot bootloader backend.
+
 .. note::
-    B0 bootloader is not integrated with MCUmgr.
+   Currently, this module supports only one bootloader backend, the MCUboot bootloader backend.
+   B0 bootloader is not integrated with MCUmgr.
 
 .. _nrf_desktop_dfu_mcumgr_mcuboot:
 

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -408,6 +408,9 @@ nRF Desktop
     * Application image configurations to explicitly specify the LED driver used by the :ref:`nrf_desktop_leds` (:kconfig:option:`CONFIG_CAF_LEDS_GPIO` or :kconfig:option:`CONFIG_CAF_LEDS_PWM`).
       Also, disabled unused LED drivers enabled by default to reduce memory footprint.
     * The :ref:`nrf_desktop_hid_forward` to allow using the module when configuration channel support (:ref:`CONFIG_DESKTOP_CONFIG_CHANNEL_ENABLE <config_desktop_app_options>`) is disabled in the application configuration.
+    * The :ref:`nrf_desktop_dfu_mcumgr` to handle the ``nrf54h20dk/nrf54h20/cpuapp`` board target with the IronSide SE architecture and the MCUboot bootloader.
+
+  * Removed the SUIT support from the :ref:`nrf_desktop_dfu_mcumgr`.
 
 nRF Machine Learning (Edge Impulse)
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