arm64: dts: mediatek: cherry: Enable the Audio DSP for SOF

This platform is able to use the Audio DSP embedded into the
MT8195 SoC: in preparation for adding audio support for Cherry,
add the ADSP related memory nodes and enable it.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922094908.41623-3-angelogioacchino.delregno@collabora.com


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>