doc: releases: 4.0: add EEPROM release notes

Add EEPROM related release notes for Zephyr v4.0.0.

Signed-off-by: Henrik Brix Andersen <[email protected]>

Author: henrikbrixandersen

doc/releases/release-notes-4.0.rst

@@ -323,6 +323,11 @@ Drivers and Sensors
 
 * Display
 
+* EEPROM
+
+  * Added support for using the EEPROM simulator with embedded C standard libraries
+    (:dtcompatible:`zephyr,sim-eeprom`).
+
 * Ethernet
 
   * LiteX: Renamed the ``compatible`` from ``litex,eth0`` to :dtcompatible:`litex,liteeth`.