dt-bindings: mmc: sdhci-msm: Allow 1 icc path

Some SoCs (like msm8998) only have a SDHC<->DDR path. Allow this case.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230213205529.2104120-1-konrad.dybcio@linaro.org


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