dt-bindings: memory-controllers: mediatek,smi-common: add mt8365

Add binding description for mediatek,mt8365-smi-common

Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20230407-smi-driver-v2-2-8da6683cdb5c@baylibre.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>