doc: changelog: add new nrf-802154 CSMA-CA Kconfigs

Added a mention that new CSMA-CA Kconfigs were added to NCS.

Signed-off-by: Rafał Kuźnia <[email protected]>

Author: e-rk

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

@@ -186,6 +186,10 @@ Matter fork
 nRF IEEE 802.15.4 radio driver
 ------------------------------
 
+* Added:
+
+  * The Kconfig options to configure default CSMA-CA algorithm parameters (:kconfig:option:`CONFIG_NRF_802154_CSMA_CA_MIN_BE_DEFAULT`, :kconfig:option:`CONFIG_NRF_802154_CSMA_CA_MAX_BE_DEFAULT`, :kconfig:option:`CONFIG_NRF_802154_CSMA_CA_MAX_CSMA_BACKOFFS_DEFAULT`).
+
 * Updated:
 
   * The Kconfig option :kconfig:option:`CONFIG_NRF_802154_CCA_ED_THRESHOLD` has been replaced by :kconfig:option:`CONFIG_NRF_802154_CCA_ED_THRESHOLD_DBM` to ensure consistent behavior on different SoC families and to reduce the likelihood of misconfiguration.