mmc: dw_mmc: Improve coding style

Fix most of checkpatch warnings and other obvious style issues.

No functional change.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2 files changed