dt-bindings: samsung: exynos-sysreg: combine exynosautov920 with other enum

No need to create a new enum every time we bring-up new SoC.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Jaewon Kim <jaewon02.kim@samsung.com>
Link: https://lore.kernel.org/r/20231210134834.43943-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

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

@@ -20,6 +20,8 @@ properties:
               - samsung,exynos3-sysreg
               - samsung,exynos4-sysreg
               - samsung,exynos5-sysreg
+              - samsung,exynosautov920-peric0-sysreg
+              - samsung,exynosautov920-peric1-sysreg
               - tesla,fsd-cam-sysreg
               - tesla,fsd-fsys0-sysreg
               - tesla,fsd-fsys1-sysreg
@@ -53,11 +55,6 @@ properties:
               - samsung,exynosautov9-peric1-sysreg
           - const: samsung,exynosautov9-sysreg
           - const: syscon
-      - items:
-          - enum:
-              - samsung,exynosautov920-peric0-sysreg
-              - samsung,exynosautov920-peric1-sysreg
-          - const: syscon
 
   reg:
     maxItems: 1