qemu: Don't overwrite stats in qemuDomainBlocksStatsGather
qemu: Don't overwrite stats in qemuDomainBlocksStatsGather

The size/capacity stats gathered in qemuDomainBlocksStatsGather when
using -blockdev would be overwritten by assigning/copying the transfered
data statistics at the end. Fix it by moving the assignment prior to
fetching the capacity data.

Signed-off-by: Peter Krempa <2cf5c04c61aa466e4a47bfedc747d17279c72ffc@redhat.com>
Reviewed-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>

nertpinx/libvirt,eskultety/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,eskultety/libvirt,crobinso/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,olafhering/libvirt,andreabolognani/libvirt,nertpinx/libvirt,zippy2/libvirt,jfehlig/libvirt,zippy2/libvirt,libvirt/libvirt,andreabolognani/libvirt,crobinso/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,jardasgit/libvirt,zippy2/libvirt,libvirt/libvirt,zippy2/libvirt,fabianfreyer/libvirt,olafhering/libvirt,eskultety/libvirt,libvirt/libvirt,jardasgit/libvirt,libvirt/libvirt,crobinso/libvirt,jfehlig/libvirt,nertpinx/libvirt,nertpinx/libvirt,nertpinx/libvirt,olafhering/libvirt,olafhering/libvirt,eskultety/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,eskultety/libvirt,crobinso/libvirt,jardasgit/libvirt