dt-bindings: soc: samsung: exynos-pmu: Add exynos9810 compatible

dt-bindings: soc: samsung: exynos-pmu: Add exynos9810 compatible

Add compatible for Samsung Exynos9810 PMU to the schema.
Like on other devices, it contains various registers related
to power management and other vital to SoC functions.

Co-developed-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
Link: https://lore.kernel.org/r/20241026-exynos9810-v3-5-b89de9441ea8@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>