ASoC: dt-bindings: add stm32mp25 support for sai

Add STM32MP25 support for STM32 SAI peripheral,
through "st,stm32mp25-sai" compatible.

Signed-off-by: Olivier Moysan <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/sound/st,stm32-sai.yaml

···
     enum:
       - st,stm32f4-sai
       - st,stm32h7-sai
+      - st,stm32mp25-sai
 
   reg:
     items:
···
     const: 1
 
   clocks:
+    minItems: 1
     maxItems: 3
 
   clock-names:
+    minItems: 1
     maxItems: 3
 
   access-controllers:
···
           items:
             - const: x8k
             - const: x11k
-    else:
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: st,stm32mph7-sai
+    then:
       properties:
         clocks:
           items:
···
             - const: pclk
             - const: x8k
             - const: x11k
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: st,stm32mp25-sai
+    then:
+      properties:
+        clocks:
+          items:
+            - description: pclk feeds the peripheral bus interface.
+
+        clock-names:
+          items:
+            - const: pclk
 
 additionalProperties: false