mtd: Use platform_data to retrieve tmio_nand platform bits

With the addition of the platform device mfd_cell pointer, we can now
cleanly pass the sub device drivers platform data pointers through the
regular device platform_data one, and get rid of mfd_get_data().

Cc: Ian Molton <spyro@f2s.com>
Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index 5ef0b8f..91ad21e 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -383,7 +383,8 @@
 
 	t7l66xb_attach_irq(dev);
 
-	t7l66xb_cells[T7L66XB_CELL_NAND].mfd_data = pdata->nand_data;
+	t7l66xb_cells[T7L66XB_CELL_NAND].platform_data = pdata->nand_data;
+	t7l66xb_cells[T7L66XB_CELL_NAND].pdata_size = sizeof(*pdata->nand_data);
 
 	ret = mfd_add_devices(&dev->dev, dev->id,
 			      t7l66xb_cells, ARRAY_SIZE(t7l66xb_cells),