mmc: davinci: use generic device_get_match_data()

There's no reason for this driver to use the OF-specific variant so
switch to using the generic device_get_match_data() helper instead.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20241007114918.52066-2-brgl@bgdev.pl


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