Document the compatible for Samsung Exynos5420 SoC Synopsys Designware
MSHC with SMU, already used in DTS and driver.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220605163710.144210-5-krzysztof.kozlowski@linaro.orgSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>