davinci: audio clocks: use struct device instead of clock names

There is no need to pass clock name strings in platform_data.
Instead, setup clkdev nodes to have correct ASoC device names.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

arch/arm/mach-davinci/include/mach/asp.h

@@ -33,7 +33,6 @@
 #define DAVINCI_ASP1_TX_INT	IRQ_MBXINT
 
 struct snd_platform_data {
-	char *clk_name;
 	u32 tx_dma_offset;
 	u32 rx_dma_offset;
 	enum dma_event_q eventq_no;	/* event queue number */