Merge pull request #92917 from openshift-cherrypick-robot/cherry-pick-92888-to-enterprise-4.19

[enterprise-4.19] [OSDOCS-14538]Release Note for c3 and n4 instance types for GCP on OSD

Author: EricPonvelle

osd_whats_new/osd-whats-new.adoc

@@ -17,6 +17,7 @@ With its foundation in Kubernetes, {product-title} is a complete {OCP} cluster p
 
 [id="osd-q1-2025_{context}"]
 === Q1 2025
+* **Support for new GCP instances.** {product-title} version 4.18 and later now supports `n4` and `c3` instance types on Google Cloud Platform. For more information, see xref:../osd_architecture/osd_policy/osd-service-definition.adoc#gcp-compute-types_osd-service-definition[Google Cloud compute types].
 
 * **New version of {product-title} available.** {product-title} on {gcp} and {product-title} on {aws} versions 4.18 are now available. For more information about upgrading to this latest version, see xref:../upgrading/osd-upgrades.adoc#osd-upgrades[Red Hat OpenShift Dedicated cluster upgrades].
 * **Support for assigning newly created machine pools to specific availability zones within a Multi-AZ cluster.**