[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/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 2c31ec7..6f42004 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -356,7 +356,7 @@
 	}
 	ssp->pdev = pdev;
 
-	ssp->clk = clk_get(&pdev->dev, "SSPCLK");
+	ssp->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(ssp->clk)) {
 		ret = PTR_ERR(ssp->clk);
 		goto err_free;