This change allows someone to modify the vcpu count settings
similar to how the ram is currently done. It also allows for
custom ansible parameters via an MNAIO_ANSIBLE_PARAMETERS var
to add custom ansible parameters for the vpcu overrides as well
as other settings.
Change-Id: I3c1fa7b55a87931eff586c0e983bb9b8c6f34fc3
Closes-Bug: 1750402