spu: Rename patterns for vec_widen_<s>mult_even/odd_<mode>
* config/spu/spu-builtins.md (spu_mpy): Move to spu.md.
(spu_mpyu, spu_mpyhhu, spu_mpyhh): Likewise.
* config/spu/spu.md (vec_widen_smult_odd_v8hi): Rename from spu_mpy.
(vec_widen_umult_odd_v8hi): Rename from spu_mpyu.
(vec_widen_smult_even_v8hi): Rename from spu_mpyhh.
(vec_widen_umult_even_v8hi): Rename from spu_mpyhhu.
* config/spu/spu-builtins.def: Update pattern names to match.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@189406 138bc75d-0d04-0410-961f-82ee72b054a4