test: Don't fail *all* tests if the network test server is not set up

Since not all tests for tst_qxmlquery and tst_xmlpatterns depend on
the network test server being set up, now we just fail those which
really depend on it allowing the rest to be normally run.

Change-Id: I0588cf986ffddea117cee680e07e1a8cc4d68436
Reviewed-by: Peter Hartmann <phartmann@blackberry.com>