tcg/loongarch64: Support LASX in tcg_out_dupm_vec

Each element size has a different encoding, so code cannot
be shared in the same way as with tcg_out_dup_vec.

Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
1 file changed