qemu: add missing break in qemuDomainDeviceCalculatePCIConnectFlags
qemu: add missing break in qemuDomainDeviceCalculatePCIConnectFlags

One of the conditions in qemuDomainDeviceCalculatePCIConnectFlags
was missing a break that could result it in falling through to
an incorrect codepath.

Signed-off-by: Daniel P. Berrange <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

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