ASoC: mediatek: mt8173-afe-pcm: use local `dev` pointer in driver callbacks

ASoC: mediatek: mt8173-afe-pcm: use local `dev` pointer in driver callbacks

The probe and remove functions in the mt8183-afe-pcm driver repeatedly uses
`&pdev->dev` for |struct device *|, but then assigns this value to
`afe->dev` and uses that in other places in the same function.

Store `&pdev->dev` in a local pointer and use that exclusively to avoid
the numerous dereferences and to make the code more consistent. Lines
are reflowed where it makes sense.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://patch.msgid.link/20250612074901.4023253-9-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>