..instead of .xcu files in solver/*/xml/registry
when running unittests and gengal.

Change-Id: I390a6c531d653acca7ef3379c49fe65fcb8f3c2a
Reviewed-on: https://gerrit.libreoffice.org/6057Tested-by: Michael Stahl <mstahl@redhat.com>
Reviewed-by: Michael Stahl <mstahl@redhat.com>