spi: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/spi/spi-bfin5xx.c

@@ -1271,7 +1271,7 @@ static int bfin_spi_probe(struct platform_device *pdev)
 	struct resource *res;
 	int status = 0;
 
-	platform_info = dev->platform_data;
+	platform_info = dev_get_platdata(dev);
 
 	/* Allocate master with space for drv_data */
 	master = spi_alloc_master(dev, sizeof(*drv_data));