- Add a new field 'blocksz' to struct mmc_data. This field
should contain the block size for multi-block transfers.
- Use this field in the driver for Marvell SDIO Controller
to set correct block size and count.
- Add the function for setting block size per SDIO function;
- Use it from the bus method;
- Introduce new field for storing block size in sdio_function structure;
- Initialize data block size, when multi-block transfer is requested.
- Some test code for multi-block read.