Addition of hostNetwork value in Chart

[ChrisJBurns]

When using EKS with a Calico CNI, there are some issues with Webhooks that are well-known. Calico recommends setting hostNetwork: true

"Calico networking cannot currently be installed on the EKS control plane nodes. As a result the control plane nodes will not be able to initiate network connections to Calico pods. (This is a general limitation of EKS's custom networking support, not specific to Calico.) As a workaround, trusted pods that require control plane nodes to connect to them, such as those implementing admission controller webhooks, can include hostNetwork:true in their pod spec. See the Kubernetes API pod spec definition for more information on this setting."

https://docs.tigera.io/calico/latest/getting-started/kubernetes/managed-public-cloud/eks#install-eks-with-calico-networking

Could we allow this as a value to be set via the Chart with the default set to false?