ASoC: core: remove the 'of_' prefix of of_xlate_tdm_slot_mask.

The 'of_' is not appropriate here for there hasn't any DT parsing.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 2f66d5e..fad7676 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -142,7 +142,7 @@
 	 * Called by soc_card drivers, normally in their hw_params.
 	 */
 	int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
-	int (*of_xlate_tdm_slot_mask)(unsigned int slots,
+	int (*xlate_tdm_slot_mask)(unsigned int slots,
 		unsigned int *tx_mask, unsigned int *rx_mask);
 	int (*set_tdm_slot)(struct snd_soc_dai *dai,
 		unsigned int tx_mask, unsigned int rx_mask,