ASoC: soc-pcm: Merge for_each_rtd_cpu/codec_dais()

Now we can use for_each_rtd_dais().
Let's use it instead of for_each_rtd_cpu/codec_dais().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87sgi8olet.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>