Merge pull request #63938 from krishnanshruthi/multiarch-3347

Author: kcarmichael08

modules/oc-mirror-imageset-config-params.adoc

@@ -203,6 +203,9 @@ The `targetName` parameter is deprecated. Use the `targetCatalog` parameter inst
 architectures:
   - amd64
   - arm64
+  - multi
+  - ppc64le
+  - s390x
 ----
 
 |`mirror.platform.channels`