mmc: mediatek: remove useless data parameter from msdc_data_xfer_next()

We do not use the 'data' in msdc_data_xfer_next().

Signed-off-by: Yue Hu <huyue2@yulong.com>
Link: https://lore.kernel.org/r/20210517105432.1682-1-zbestahu@gmail.com


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