docs(changelog): update errata-abi topic

This has changed from errata_abi to errata-abi. This change was part of:
5c8fcc0ca7f5 ("fix(errata-abi): fix the rev-var for Cortex-A710")

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I2c3f9e6ed07307b8372b5a84a96fbbcfe482a9be
diff --git a/changelog.yaml b/changelog.yaml
index 188a6cb..55d7f04 100644
--- a/changelog.yaml
+++ b/changelog.yaml
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2021-2022, Arm Limited. All rights reserved.
+# Copyright (c) 2021-2023, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -653,8 +653,11 @@
       - title: TRNG
         scope: trng
 
-      - title: ERRATA_ABI
-        scope: errata_abi
+      - title: ERRATA ABI
+        scope: errata-abi
+
+        deprecated:
+          - errata_abi
 
   - title: Libraries