spi: dt-bindings: fsl,dspi: Fix example indentation

DTS example in the bindings should be indented with 2- or 4-spaces, so
correct a mixture of different styles to keep consistent 4-spaces.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250509112130.123462-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: krzk

Documentation/devicetree/bindings/spi/fsl,dspi.yaml

@@ -105,12 +105,12 @@ examples:
         big-endian;
 
         flash@0 {
-                compatible = "jedec,spi-nor";
-                reg = <0>;
-                spi-max-frequency = <16000000>;
-                spi-cpol;
-                spi-cpha;
-                spi-cs-setup-delay-ns = <100>;
-                spi-cs-hold-delay-ns = <50>;
+            compatible = "jedec,spi-nor";
+            reg = <0>;
+            spi-max-frequency = <16000000>;
+            spi-cpol;
+            spi-cpha;
+            spi-cs-setup-delay-ns = <100>;
+            spi-cs-hold-delay-ns = <50>;
         };
     };