update CHANGELOG

Author: japaric

CHANGELOG.md

@@ -288,7 +288,8 @@ peripheral.register.write(|w| w.field().set());
 
 - Initial version of the `svd2rust` tool
 
-[Unreleased]: https://github.com/japaric/svd2rust/compare/v0.11.1...HEAD
+[Unreleased]: https://github.com/japaric/svd2rust/compare/v0.11.2...HEAD
+[v0.11.2]: https://github.com/japaric/svd2rust/compare/v0.11.1...v0.11.2
 [v0.11.1]: https://github.com/japaric/svd2rust/compare/v0.11.0...v0.11.1
 [v0.11.0]: https://github.com/japaric/svd2rust/compare/v0.10.0...v0.11.0
 [v0.10.0]: https://github.com/japaric/svd2rust/compare/v0.9.1...v0.10.0