Add dt-binding documentation of timer for MediaTek MT8188 SoC
platform.
Signed-off-by: Johnson Wang <johnson.wang@mediatek.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220818124602.20394-1-johnson.wang@mediatek.comSigned-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>