MLECO-3319: Documentation updates for Arm® Corstone™-310.

Documentation updates around use of Arm® Corstone™-310 AVH, especially
in terms of use of timing adapters (TA). Also, use of TA's is forced
off for SSE-310 subsystem's CMake configuration.

Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>
Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
Change-Id: I66a87060d8d47ce2580aa15f3908be20162eab54
diff --git a/release_notes.txt b/release_notes.txt
index f2ab3af..6e09f01 100644
--- a/release_notes.txt
+++ b/release_notes.txt
@@ -1,3 +1,10 @@
+Changes in 22.08
+    * Formal support for Arm® Corstone-310 Arm Virtual Hardware and FPGA implementations.
+    * Added CMake presets.
+    * Bug fix for Arm® Ethos-U65 NPU's default AXI burst length.
+    * Provision to allow platform-agnostic use case API to be packaged as CMSIS pack.
+    * Documentation updates.
+
 Changes in 22.05
     * Support for 22.05 Ethos-U component and dependencies (core-driver, core-platform, Vela 3.4.0, CMSIS, TensorFlow Lite Micro).
     * Restructuring of repository sources to allow generation of CMSIS packs.