Add PMU compatible string for rockchip rv1126. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Jagan Teki <jagan@edgeble.ai> Link: https://lore.kernel.org/r/20221129075424.189655-2-jagan@edgeble.ai Signed-off-by: Heiko Stuebner <heiko@sntech.de>