ASoC: audio-graph: use simple_props_to_xxx() macro

We shouldn't use dai_props->cpus/codecs directly,
because these are array now to supporting multi CPU/Codec/Platform.
This patch uses simple_props_to_xxx() macro for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87k0p5zs97.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>