ASoC: dt-bindings: everest,es8328: Mark ES8388 compatible with ES8328

Based on Linux driver, the ES8388 looks fully compatible with ES8328.
One upstream DTS (ARM rk3288-rock2-square.dts) already uses ES8328
fallback, so mark the devices as compatible in the binding.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250304103808.75236-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/everest,es8328.yaml

@@ -24,9 +24,13 @@ maintainers:
 
 properties:
   compatible:
-    enum:
-      - everest,es8328
-      - everest,es8388
+    oneOf:
+      - enum:
+          - everest,es8328
+      - items:
+          - enum:
+              - everest,es8388
+          - const: everest,es8328
 
   reg:
     maxItems: 1