dt-bindings: arm: mediatek: audsys: Support mt8192-audsys variant

Add support for the mediatek,mt8192-audsys compatible, which uses
a different audio controller (mt8192-afe-pcm) compared to mt8183
and mt2701.

This resolves a dtbs_check warning on all MT8192 devicetrees.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.yaml

@@ -48,19 +48,39 @@ required:
   - compatible
   - '#clock-cells'
 
-if:
-  properties:
-    compatible:
-      contains:
-        const: mediatek,mt8183-audiosys
-then:
-  properties:
-    audio-controller:
-      $ref: /schemas/sound/mediatek,mt8183-audio.yaml#
-else:
-  properties:
-    audio-controller:
-      $ref: /schemas/sound/mediatek,mt2701-audio.yaml#
+allOf:
+ - if:
+     properties:
+       compatible:
+         contains:
+           enum:
+             - mediatek,mt2701-audsys
+             - mediatek,mt7622-audsys
+   then:
+     properties:
+       audio-controller:
+         $ref: /schemas/sound/mediatek,mt2701-audio.yaml#
+
+ - if:
+     properties:
+       compatible:
+         contains:
+           const: mediatek,mt8183-audiosys
+   then:
+     properties:
+       audio-controller:
+         $ref: /schemas/sound/mediatek,mt8183-audio.yaml#
+
+ - if:
+     properties:
+       compatible:
+         contains:
+           const: mediatek,mt8192-audsys
+   then:
+     properties:
+       audio-controller:
+         $ref: /schemas/sound/mt8192-afe-pcm.yaml#
+
 
 additionalProperties: false