arm64: dts: mediatek: mt8395-nio-12l: Enable Audio DSP and sound card

arm64: dts: mediatek: mt8395-nio-12l: Enable Audio DSP and sound card

Add memory regions for the Audio DSP (ADSP) and Audio Front-End (AFE),
and enable both components in the device tree.

Also, define the required pin configuration and add a sound card node
configured to use the ADSP. This enables audio output through the 3.5mm
headphone jack available on the board.

Signed-off-by: Julien Massot <julien.massot@collabora.com>
Link: https://lore.kernel.org/r/20250423-mt8395-audio-sof-v2-1-5e6dc7fba0fc@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>