[binutils-gdb] sim: d10v: link in missing testsuite

[sergiodj+buildbot@redhat.com]

*** TEST RESULTS FOR COMMIT e8713c0f026199c327ba88ea6da4bcffebff6991 ***

Author: Mike Frysinger <vapier@gentoo.org>
Branch: master
Commit: e8713c0f026199c327ba88ea6da4bcffebff6991

sim: d10v: link in missing testsuite
Looks like historical restructuring in this dir lost the d10v-elf subdir
and no one noticed in the meantime.  Re-add it to the testsuite.

There are some failures, but better some tests get run than none at all.