Changelog: Add v0.23.1

Author: andreaskurth

CHANGELOG.md

@@ -11,6 +11,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed
 
+### Fixed
+
+
+## 0.23.1 - 2020-06-19
+
 ### Fixed
 - `axi_lite_demux_intf`: Fix passing of `req_t` and `resp_t` parameters to `axi_lite_demux`.
 - `axi_lite_xbar`: Add missing `slv_a{w,r}_cache_i` connections on `axi_lite_to_axi` instance.