Updating PCI-DSS version for IBM Z

Author: Lakshmi Girish

security/compliance_operator/compliance-operator-release-notes.adoc

@@ -25,6 +25,11 @@ The following advisory is available for the OpenShift Compliance Operator 1.7.1:
 
 * link:https://access.redhat.com/errata/RHBA-2025:14639[RHBA-2025:14639 - OpenShift Compliance Operator 1.7.1 bug fix update]
 
+[NOTE]
+====
+The OpenShift Compliance Operator 1.7.1 supports PCI-DSS versions 3.2.1 and 4.0.0 on {ibm-z-name} (`s390x`) architecture.
+====
+
 [id="compliance-operator-1-7-1-bug-fixes_{context}"]
 === Bug fixes