arm64: dts: rockchip: Use generic name for es8316 on Pinebook Pro and Rock 5B

Use generic 'audio-codec' name for es8316 node on Pinebook Pro and Rock
5B boards.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20230414125425.124994-3-cristian.ciocaltea@collabora.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>