[ARM] pxa: don't pass a consumer clock name for devices with unique clocks

Where devices only have one consumer, passing a consumer clock ID
has no real benefit.  Remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index eb6be58..6586f0b 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -1071,7 +1071,7 @@
 		goto exit;
 	}
 
-	pcdev->clk = clk_get(&pdev->dev, "CAMCLK");
+	pcdev->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(pcdev->clk)) {
 		err = PTR_ERR(pcdev->clk);
 		goto exit_kfree;