CHANGELOG.md: added lines for fixes from operator-framework#1456 and operator-framework#1461

Author: joelanford

CHANGELOG.md

@@ -10,6 +10,9 @@
 
 ### Bug Fixes
 
+- Fixes regression introduced by [#1434]() that causes Helm RBAC generation to contain an empty custom ruleset when the chart's default manifest contains only namespaced resources. ([#1456](https://github.com/operator-framework/operator-sdk/pull/1456))
+- Fixes an issue that caused Helm RBAC generation to fail when creating new operators with a Kubernetes context configured to connect to an OpenShift cluster. ([#1461](https://github.com/operator-framework/operator-sdk/pull/1461))
+
 ## v0.8.0
 
 ### Added