migrate systemvm virtualmachine= lists guest vms instead of systemvms

[borisstoyanov]

(localcloud) SBCM5> > migrate systemvm virtualmachineid=
7466da01-6fc0-4f31-bd30-dffc81fcb49f (shared)             80d5cb01-60f6-4991-959c-cd37ac4bd4d1 (vpc-vm)             b2f2f053-77a9-40a0-be1b-afe4b0c2f524 (isolated)

it would be great if it lists VRs and system vms instead of guest vms

[Pearl1594]

It's a good to have enhancement, however, may not be straight-forward, because of the heuristic approach used for auto completion, keeping it as part of 6.2.0 milestone for now.