ASoC: dt-bindings: cirrus,cs35l41: add interrupts

Both DTS (SM8250 and SM8350 based Sony Xperia boards) and Linux driver
mention interrupt, so allow it to fix:

  sm8350-sony-xperia-sagami-pdx215.dtb: cs35l41@41: Unevaluated properties are not allowed ('interrupt-parent', 'interrupts' were unexpected)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221224154210.43356-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml

@@ -22,6 +22,9 @@ properties:
   reg:
     maxItems: 1
 
+  interrupts:
+    maxItems: 1
+
   '#sound-dai-cells':
     description:
       The first cell indicating the audio interface.