increase fs of Fedora provision to use whole VG

Fedora by default doesn't use all the space in the device, it creates an small / partition and the remainign VG is free

For testing it would be better if the whole space of the VG is allocated

https://lists.fedoraproject.org/archives/list/server@lists.fedoraproject.org/thread/D7ZK7SILYDYAATRFS6BFWZQWS6KSRGDG/