mmc: sdhci-of-arasan: Use signed formatting in error messages
mmc: sdhci-of-arasan: Use signed formatting in error messages

"ret" is a signed int, so use "%d" in format strings instead of "%u".
This prevents cryptic codes in error messages like this:
sdhci-arasan e0101000.sdhci: platform register failed (4294966779)

Signed-off-by: Mike Looijmans <a3a80a5bf09f2a16fb39154c4e7d0b2d849b0dfb@topic.nl>
Reviewed-by: Michal Simek <b20e59da6aeb5cea6c82b021069d69f63616c55d@xilinx.com>
Signed-off-by: Ulf Hansson <fe47b31f388f85ce6ddf64bf3a0cf6b46077d0e6@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs