vagrant: update comment for MASTER_IPV4_NFS
vagrant: update comment for MASTER_IPV4_NFS

The NFS option was removed in commit
1f896fe99159 ("vagrant: Default to NFS in the dev. VMs"). Rephrase the
comment accordingly.

Signed-off-by: Julian Wiedmann <a70165cc435925071a1d5d2715fcc7eb04666fa4@isovalent.com>

michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium/cilium