enable role-sync-controller by default only on EKS

Author: demonCoder95

cluster/config-defaults.yaml

@@ -1194,7 +1194,8 @@ teapot_admission_controller_scheduling_controls_enabled: "false"
 teapot_admission_controller_scheduling_controls_default_architecture: "amd64"
 
 # role-sync-controller configs
-{{ if eq .Cluster.Environment "e2e" }}
+# Enabled by default only on Zalando EKS clusters
+{{ if eq .Cluster.Provider "zalando-eks" }}
 role_sync_controller_enabled: "true"
 {{ else }}
 role_sync_controller_enabled: "false"