ASoC: dt-bindings: rt1015p: add new compatible id

Add new compatible ID for rt1015p in dt-bindings document.

Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/ce9e2f298f0c4fc59f756c39736a297a@realtek.com


Signed-off-by: Mark Brown <broonie@kernel.org>