dt-bindings: soc: google: exynos-sysreg: add dedicated SYSREG compatibles to GS101

GS101 has three different SYSREG controllers, add dedicated
compatibles for them to the documentation.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20231209233106.147416-4-peter.griffin@linaro.org
[krzysztof: move Google entries to existing enum]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

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

@@ -14,6 +14,9 @@ properties:
     oneOf:
       - items:
           - enum:
+              - google,gs101-apm-sysreg
+              - google,gs101-peric0-sysreg
+              - google,gs101-peric1-sysreg
               - samsung,exynos3-sysreg
               - samsung,exynos4-sysreg
               - samsung,exynos5-sysreg