dt-bindings: mmc: Add resets property to cadence SDHCI binding

Cadence SDHCI controller allows reset control support on UniPhier SoC.
Add resets property to cadence SDHCI binding.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230213045233.32470-1-hayashi.kunihiko@socionext.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>