All <console> devices now export a <target> type attribute. QEMU defaults
to 'serial', UML defaults to 'uml, xen can be either 'serial' or 'xen'
depending on fullvirt. Understandably there is lots of test fallout.

This will be used to differentiate between a serial vs. virtio console for
QEMU.
Signed-off-by: NCole Robinson <crobinso@redhat.com>

  for arguments to bootloader, patch from Hugh Brock
* tests/sexpr2xmltest.c tests/xml2sexprtest.c
  tests/sexpr2xmldata/sexpr2xml-pv-bootloader.sexpr
  tests/sexpr2xmldata/sexpr2xml-pv-bootloader.xml
  tests/xml2sexprdata/xml2sexpr-pv-bootloader.sexpr
  tests/xml2sexprdata/xml2sexpr-pv-bootloader.xml: add specific
  regression tests
Daniel