dt-bindings: soc: samsung: exynos-sysreg: add dedicated SYSREG compatibles to Exynos850

Exynos850 has two different SYSREGs, hence add dedicated compatibles for
them and deprecate usage of generic Exynos850 compatible alone.
Signed-off-by: Sriranjani P <sriranjani.p@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20221214044342.49766-2-sriranjani.p@samsung.comSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

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

@@ -17,7 +17,6 @@ properties:
               - samsung,exynos3-sysreg
               - samsung,exynos4-sysreg
               - samsung,exynos5-sysreg
-              - samsung,exynos850-sysreg
               - samsung,exynosautov9-sysreg
               - tesla,fsd-cam-sysreg
               - tesla,fsd-fsys0-sysreg
@@ -33,9 +32,17 @@ properties:
           - const: samsung,exynos5433-sysreg
           - const: syscon
       - items:
-          - const: samsung,exynos5433-sysreg
+          - enum:
+              - samsung,exynos5433-sysreg
+              - samsung,exynos850-sysreg
           - const: syscon
             deprecated: true
+      - items:
+          - enum:
+              - samsung,exynos850-cmgp-sysreg
+              - samsung,exynos850-peri-sysreg
+          - const: samsung,exynos850-sysreg
+          - const: syscon
 
   reg:
     maxItems: 1
@@ -53,6 +60,8 @@ allOf:
         compatible:
           contains:
             enum:
+              - samsung,exynos850-cmgp-sysreg
+              - samsung,exynos850-peri-sysreg
               - samsung,exynos850-sysreg
     then:
       required: