csky ld testsuite fixes

[H.J. Lu]

On Mon, Mar 18, 2019 at 5:12 AM Alan Modra <amodra@gmail.com> wrote:
>
> Removes some XPASSes for CSKY (and a FAIL for moxie).
>
>         * testsuite/ld-elf/merge.d: Remove csky from xfails, add moxie.
>         * testsuite/ld-elf/pr21884.d: Remove csky from xfails.
>         * testsuite/ld-elf/shared.exp: Add csky to list not xfailing pr22374.
>         * testsuite/ld-unique/pr21529.d: Remove csky from xfails
>

csky-elf linker segfaults on these tests.

-- 
H.J.