ASoC: Samsung: Get I2S src_clk from clock alias id.

As the I2S src clks are registered with clkdev using generic
connection id, driver can get the clk name using generic id.
So the variable representing the array of rclk src clks is
deleted.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/linux/platform_data/asoc-s3c.h

@@ -38,12 +38,6 @@ struct samsung_i2s {
 #define QUIRK_NEED_RSTCLR	(1 << 3)
 	/* Quirks of the I2S controller */
 	u32 quirks;
-
-	/*
-	 * Array of clock names that can be used to generate I2S signals.
-	 * Also corresponds to clocks of I2SMOD[10]
-	 */
-	const char **src_clk;
 	dma_addr_t idma_addr;
 };