CHANGELOG for v2.1.7 release

Author: parweza

CHANGELOG.md

@@ -3,6 +3,11 @@ All notable changes to this project are documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
+## 2.1.7 - 2018-05-03
+
+### Added
+- Added support for virtual host names for Load balancer listeners. See [listeners](https://github.com/oracle/terraform-provider-oci/blob/master/docs/load_balancer/listeners.md), [hostnames](https://github.com/oracle/terraform-provider-oci/blob/master/docs/load_balancer/hostnames.md) for more details. 
+
 ## 2.1.6 - 2018-04-26
 
 ### Added