WIP: arm64: dts: mediatek: mt8390-genio-700-evk: Set apll1 as parent

This avoids a hang during boot when the platform sound driver is
compiled as a module.

Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>