mmc: davinci: remove matching string

The string "MMCSDCLK" is not actually used for clock lookup, so can be
removed.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/davinci_mmc.c

@@ -1241,7 +1241,7 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
 		goto out;
 
 	ret = -ENXIO;
-	host->clk = clk_get(&pdev->dev, "MMCSDCLK");
+	host->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(host->clk)) {
 		ret = PTR_ERR(host->clk);
 		goto out;