ASoC: dt-bindings: ti,pcm1681: Fix the binding title

The PCM1681 is an 8-channel Digital-to-Analog Converter, so fix it
accordingly.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20250121155747.3740995-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/ti,pcm1681.yaml

@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/sound/ti,pcm1681.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Texas Instruments PCM1681 8-channel PWM Processor
+title: Texas Instruments PCM1681 8-channel Digital-to-Analog Converter
 
 maintainers:
   - Shenghao Ding <shenghao-ding@ti.com>