mmc: renesas_sdhi: Drop local dma_parms

mmc: renesas_sdhi: Drop local dma_parms

Since commit 75a877d1eaa6 ("driver core: platform: Initialize dma_parms
for platform devices"), struct platform_device already provides a
dma_parms structure, so we can save allocating another one.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/85e1fc97dbec3dea96102785a5e308ccb5e91cfe.1599167798.git.robin.murphy@arm.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>