Update reference-nexus-kubernetes-cluster-sku.md

Author: dramasamy

articles/operator-nexus/reference-nexus-kubernetes-cluster-sku.md

@@ -23,7 +23,7 @@ The primary difference between the two types of VMs is their approach to emulato
 All these SKUs are having the following characteristics:
 
 1. Dedicated host-to-VM CPU mapping
-2. Reserved CPUs for Kubelet are 0 and 1, except for NC_G2_8_v1
+2. Reserved CPUs for Kubelet are 0 and 1, except for NC_G2_8_v1 and NC_P4_28_v1
 
 These VM SKUs can be used for both worker and control plane nodes within the Azure Operator Nexus Kubernetes cluster.