target/sparc: Perform DFPREG/QFPREG in decodetree

Form the proper register decoding from the start.

Because we're removing the translation from the inner-most
gen_load_fpr_* and gen_store_fpr_* routines, this must be
done for all insns at once.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 files changed