message: release: update CHANGELOG.md to include a note related to Hammer providers in Ivy
diff: * **ivy:** support selector-less directive as base classes in Ivy ([#32125](https://github.com/angular/angular/issues/32125)) ([cfed0c0](https://github.com/angular/angular/commit/cfed0c0)), closes [#31379](https://github.com/angular/angular/issues/31379)
  * **ivy:** make the Ivy compiler the default for ngc ([#32219](https://github.com/angular/angular/issues/32219)) ([ec4381d](https://github.com/angular/angular/commit/ec4381d))
  * **ivy:** convert all ngtsc diagnostics to ts.Diagnostics ([#31952](https://github.com/angular/angular/issues/31952)) ([0287b23](https://github.com/angular/angular/commit/0287b23))
  -* **ivy:** make Hammer support tree-shakable ([#32203](https://github.com/angular/angular/issues/32203)) ([de8ebbd](https://github.com/angular/angular/commit/de8ebbd))
  ### Performance Improvements
  * **ivy:** split view processing into render (create) and refresh (update) pass ([#32020](https://github.com/angular/angular/issues/32020)) ([b9dfe66](https://github.com/angular/angular/commit/b9dfe66))
  +### BREAKING CHANGES
  +
  +* **ivy:** make Hammer support tree-shakable. Previously, in Ivy applications, Hammer providers were included by default. With this commit, apps that want Hammer support must import `HammerModule`in their root module. ([#32203](https://github.com/angular/angular/issues/32203)) ([de8ebbd](https://github.com/angular/angular/commit/de8ebbd))
  +
  +
  <a name="8.2.3"></a>
  ## [8.2.3](https://github.com/angular/angular/compare/8.2.2...8.2.3) (2019-08-21)
  