[PATCH][gold] Mips: Fix TLS LDM GOT entry

[Cary Coutant]

>         * mips.cc (Mips_got_entry::hash()): Shift addend to reduce
>         possibility of collisions.
>         (Mips_got_entry::equals): Fix case for GOT_TLS_LDM
>         entries.

Committed on your behalf.

Thanks!

-cary