mmc: dw_mmc: transfer proper bytes to FIFO

The former implement, dw_mmc will push and pop the redundant data to
FIFO, we should transfer it according to the real size.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
1 file changed