ASoC: tlv320aic32x4: dt-bindings: add TAS2505 to compatible

This adds 'ti,tas2505' for TAS2505 to the list of allowed compatible
strings.
Signed-off-by: Claudius Heine <ch@denx.de>
Link: https://lore.kernel.org/r/20210617085230.1851503-4-ch@denx.deSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/tlv320aic32x4.txt

@@ -6,6 +6,7 @@ Required properties:
  - compatible - "string" - One of:
 	"ti,tlv320aic32x4" TLV320AIC3204
 	"ti,tlv320aic32x6" TLV320AIC3206, TLV320AIC3256
+	"ti,tas2505" TAS2505, TAS2521
  - reg: I2C slave address
  - supply-*: Required supply regulators are:
     "iov" - digital IO power supply