AES: Move Changelog entry to unreleased (#621)

Author: vcchtjader

hal/CHANGELOG.md

@@ -1,6 +1,7 @@
 # Unreleased Changes
 
 - Fix failing `bsp_pins!` invocation with no aliases (#605 fixes #599)
+- Add Advanced Encryption Standard (AES) peripheral support including RustCrypto compatible backend
 
 # v0.15.1
 
@@ -45,7 +46,6 @@
 - Add Device Service Unit (DSU), Non-volatile Controller (NVM), SmartEEPROM support (#526)
 - Expand Public Key Cryptography Controller (PUKCC) to support modular
   exponentiation (RSA) (#544)
-- Add Advanced Encryption Standard (AES) peripheral support including RustCrypto compatible backend
 
 ---