ASoC: amd: don't use codec anymore

commit c88d3115 ("ASoC: amd: Enable da7219 master clock using common
clock framework") is using rtd->codec, but codec is replaced to component.
Let's use component

Fixes: c88d3115

 ("ASoC: amd: Enable da7219 master clock using common clock framework")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>