ASoC: fix invalid yaml

The word "or" is useless and breaks yaml validation.
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Link: https://lore.kernel.org/r/20220411194409.3390002-1-clabbe@baylibre.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/tas27xx.yaml

@@ -20,7 +20,6 @@ properties:
   compatible:
     enum:
       - ti,tas2764
-      or
       - ti,tas2780
 
   reg: