Configures the needed module to enable nested virtualization

yeah, I am aware that it's from kernel source(that too from THE torvalds/linux). Though it is a authoritative it's likely that it's not updated or buggy or something else (like differs for RHEL).

I had tested and realized it's tested=Y , to get it to work and hence the code.

We had configured this feature for ginger, but we wanted to automate it for other machines like sesame, new machines if the module is not enabled and hence the PR.