add missing supported operators

Author: SNiemann15

modules/assisted-installer-using-the-assisted-installer.adoc

@@ -37,7 +37,13 @@ The {ai-full} supports installing {product-title} on premises in a connected env
 * Highly available {product-title} or {sno} (SNO)
 
 * {product-title} on bare metal, Nutanix, or vSphere with full platform integration, or other virtualization platforms without integration
-* Optionally {VirtProductName} and {rh-storage} (formerly OpenShift Container Storage)
+
+* Optional: {VirtProductName}, multicluster engine, {lvms-first}, and {rh-storage}
++
+[NOTE]
+====
+Currently, {VirtProductName} and {lvms} are not supported on {ibm-z-name} (`s390x`) architecture.
+====
 
 The user interface provides an intuitive interactive workflow where automation does not exist or is not required. Users may also automate installations using the REST API.