mmc: dw_mmc: Fix kernel-doc comments in dwmmc.h

Rework kernel-doc comments in dwmmc.h header so it's actually possible
to generate a proper documentation from it usin scripts/kernel-doc
script, with no errors.

No functional change.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
1 file changed