ARM: ep93xx: vision_ep9307: enable DMA for SPI

Enable the 'use_dma' flag in the SPI platform data to improve the speed
of the mmc_spi driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ep93xx/vision_ep9307.c

@@ -282,6 +282,7 @@ static struct spi_board_info vision_spi_board_info[] __initdata = {
 
 static struct ep93xx_spi_info vision_spi_master __initdata = {
 	.num_chipselect	= ARRAY_SIZE(vision_spi_board_info),
+	.use_dma	= 1,
 };
 
 /*************************************************************************