rewrite ChangeLog

Signed-off-by: Yanray Wang <yanray.wang@arm.com>
diff --git a/ChangeLog.d/add-aes-128bit-only.txt b/ChangeLog.d/add-aes-128bit-only.txt
index 2f0b371..7b7a76b 100644
--- a/ChangeLog.d/add-aes-128bit-only.txt
+++ b/ChangeLog.d/add-aes-128bit-only.txt
@@ -1,5 +1,5 @@
 Features
-   * Add support for AES to only enable 128-bit key in order to save code size.
+   * Add support to restrict AES to 128-bit keys in order to save code size.
      A new configuration option, MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH, can be
      used to enable this feature.
      Fixes #7376.