tests: fix running of qemuxml2argvtest program
tests: fix running of qemuxml2argvtest program

The previous commit:

  commit a455d41e3e1c1af3a36ccdbb2e3f2356cc58993e
  Author: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>
  Date:   Thu Jan 25 09:35:50 2018 +0000

    conf: expand network device callbacks to cover resolving NIC type

mistakenly dropped qemuxml2argvtest from the tests due to a typo.

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

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