Update changelog

CHANGELOG.md

@@ -3,6 +3,8 @@
 IMPROVEMENTS:
 * Connect: Overwrite Kubernetes HTTP readiness and/or liveness probes to point to Envoy proxy when
   transparent proxy is enabled. [[GH-517](https://github.com/hashicorp/consul-k8s/pull/517)]
+* Connect: Don't set security context for the Envoy proxy when on OpenShift and transparent proxy is disabled.
+  [[GH-521](https://github.com/hashicorp/consul-k8s/pull/521)]
 
 BUG FIXES:
 * Connect: Process every Address in an Endpoints object before returning an error. This ensures an address that isn't reconciled successfully doesn't prevent the remaining addresses from getting reconciled. [[GH-519](https://github.com/hashicorp/consul-k8s/pull/519)]