Merge pull request #91554 from openshift-cherrypick-robot/cherry-pick-91369-to-enterprise-4.18

[enterprise-4.18] OSDOCS-11940: specify Arm nodes not yet available for Virtualization

Author: EricPonvelle

modules/virt-supported-cluster-version.adoc

@@ -7,3 +7,8 @@
 = Supported cluster versions for {VirtProductName}
 
 {VirtProductName} {VirtVersion} is supported for use on {product-title} {product-version} clusters. To use the latest z-stream release of {VirtProductName}, you must first upgrade to the latest version of {product-title}.
+
+[NOTE]
+====
+{VirtProductName} is currently available on x86-64 CPUs. Arm-based nodes are not yet supported.
+====