dt-bindings: samsung: Indent examples with four spaces

Change the indentation of examples used in json-schema bindings from two
to four spaces as this makes the code easier to read and seems to be
preferred in other files.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Sebastian Reichel <sre@kernel.org> # for power/reset
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/power/reset/syscon-poweroff.yaml

@@ -53,8 +53,8 @@ allOf:
 examples:
   - |
     poweroff {
-      compatible = "syscon-poweroff";
-      regmap = <&regmapnode>;
-      offset = <0x0>;
-      mask = <0x7a>;
+        compatible = "syscon-poweroff";
+        regmap = <&regmapnode>;
+        offset = <0x0>;
+        mask = <0x7a>;
     };