doc: update release notes

Commit updates the changelog file with mentioning of
the emds starage context related clarifications.

Signed-off-by: Aleksandr Khromykh <[email protected]>

Author: alxelax

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

@@ -565,4 +565,7 @@ Trusted Firmware-M
 Documentation
 =============
 
-|no_changes_yet_note|
+* Updated:
+
+  * The :ref:`emds_readme_application_integration` section in the :ref:`emds_readme` library documentation to clarify the EMDS storage context usage.
+  * The Emergency data storage section in the :ref:`bluetooth_mesh_light_lc` sample documentation to clarify the EMDS storage context implementation and usage.