dt-bindings: fsl-imx-sdma: fix HDMI audio index

HDMI Audio has been added to the DT binding documentation with an
incorrect index. DT and the driver use index 26. This happened,
because the binding is missing MULTI_SAI type, which is using
index 25.

Reported-by: Michael Yackavage <michaely@ips-yes.com>
Fixes: 7bdbd87 ("dt-bindings: fsl-imx-sdma: Convert imx sdma to DT schema")
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Link: https://lore.kernel.org/r/20240226212740.2019837-6-sre@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>

Author: sre

Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml

@@ -92,7 +92,8 @@ properties:
               description: needs firmware more than ver 2
           - Shared ASRC: 23
           - SAI: 24
-          - HDMI Audio: 25
+          - Multi SAI: 25
+          - HDMI Audio: 26
 
        The third cell: transfer priority ID
          enum: