Merge pull request #57040 from xenolinux/7592

OCPBUGS#7592: Adds clarification for IPv6 support

Author: sjhala-ccs

modules/installing-ocp-agent.adoc

@@ -129,6 +129,7 @@ platform:
     - 192.168.11.4
     - 2001:DB8::5
 ----
+IPv6 is supported only on bare metal platforms.
 ====
 
 . Create the `agent-config.yaml` file:
@@ -269,4 +270,5 @@ networking:
   - fd03::/112
   networkType: OVNKubernetes
 ----
+IPv6 is supported only on bare metal platforms.
 ====