Add SAU addition to CHANGELOG
@@ -22,6 +22,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
See the `asm/lib.rs` documentation for more details.
- Initial ARMv8-M MPU support
- ICTR and ACTLR registers added
+- Support for the Security Attribution Unit on ARMv8-M
### Changed
