1. Proposed title of this feature request

Custom router default idle timeout in Azure
2. What is the nature and description of the request?

Patch the service router-default to override with a custom value the idle-timeout from 4min, in a persistent manner.

Currently in AKS, this is fully supported by using the service annotation   "service.beta.kubernetes.io/azure-load-balancer-tcp-idle-timeout". 

But in OpenShift the Cluster Operator does not allow it and overrides it.

[1]https://learn.microsoft.com/en-us/azure/load-balancer/load-balancer-tcp-idle-timeout?tabs=tcp-reset-idle-portal 

[2 ]https://learn.microsoft.com/en-us/azure/aks/load-balancer-standard#customizations-via-kubernetes-annotations 

3. Why does the customer need this? (List the business requirements here)
4. List any affected packages or components.