Re: [libvirt] [PATCH 3/6] conf: move rombar and bootIndex into virDomainDeviceInfo

To help consolidate the commonality between virDomainHostdevDef and virDomainInterface into as few members as possible (and because I think it makes sense), this patch moves the rombar and bootIndex members into the "info" member that is common to both (and to all the other structs that use them). It's a bit problematic that this gives rombar and bootIndex to many device types that don't use them, but this is already the case for the master and mastertype members of virDomainDeviceInfo, and is properly commented as such in the definition. Note that this opens the door to supporting rombar for other devices that are attached to the guest PCI bus - virtio-blk-pci, virtio-net-pci, various other network adapters - which which have that capability in qemu, but previously had no support in libvirt.