ASoC: dt-bindings: qcom,q6apm-dai: adjust indentation in example

Cleanup the example DTS by fixing indentation to 4-spaces and adding
blank lines for readability.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220910091428.50418-15-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/qcom,q6apm-dai.yaml

@@ -33,13 +33,14 @@ examples:
         #address-cells = <1>;
         #size-cells = <0>;
         qcom,domain = <GPR_DOMAIN_ID_ADSP>;
+
         service@1 {
-          compatible = "qcom,q6apm";
-          reg = <1>;
+            compatible = "qcom,q6apm";
+            reg = <1>;
 
-          dais {
-            compatible = "qcom,q6apm-dais";
-            iommus = <&apps_smmu 0x1801 0x0>;
-          };
+            dais {
+                compatible = "qcom,q6apm-dais";
+                iommus = <&apps_smmu 0x1801 0x0>;
+            };
         };
     };