dt-bindings: samsung: exynos-pmu: add exynosautov920 compatible

Add samsung,exynosautov920-pmu compatible for representing
pmu of ExynosAutov920 SoC.
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Link: https://lore.kernel.org/r/20231115095609.39883-3-jaewon02.kim@samsung.comSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml

@@ -52,6 +52,7 @@ properties:
           - enum:
               - samsung,exynos7885-pmu
               - samsung,exynosautov9-pmu
+              - samsung,exynosautov920-pmu
           - const: samsung,exynos7-pmu
           - const: syscon
       - items: