dt-bindings: soc: samsung: exynos-sysreg: correct indentation for deprecated

"deprecated" keyword was indentend wrong - entire list of compatibles
starting with generic Exynos SoC compatible is deprecated.
Reported-by: Rob Herring <robh@kernel.org>
Fixes: 0a2af7bd ("dt-bindings: soc: samsung: exynos-sysreg: add dedicated SYSREG compatibles to Exynos850")
Link: https://lore.kernel.org/r/20230109083948.77462-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml

@@ -36,7 +36,7 @@ properties:
               - samsung,exynos850-sysreg
               - samsung,exynosautov9-sysreg
           - const: syscon
-            deprecated: true
+        deprecated: true
       - items:
           - enum:
               - samsung,exynos850-cmgp-sysreg