dt-bindings: tas2562: Add TAS2564 to binding

Add the TAS2564 compatible and data sheet link to the binding.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200918150130.21015-1-dmurphy@ti.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/tas2562.yaml

@@ -19,12 +19,14 @@ description: |
   Specifications about the audio amplifier can be found at:
     https://www.ti.com/lit/gpn/tas2562
     https://www.ti.com/lit/gpn/tas2563
+    https://www.ti.com/lit/gpn/tas2564
 
 properties:
   compatible:
     enum:
       - ti,tas2562
       - ti,tas2563
+      - ti,tas2564
 
   reg:
     maxItems: 1