ASoC: ab8500: Use ASoC I/O functions

In preparation for moving away from implementing the ASoC level register
I/O functionality change direct calls to the ab8500 implementation of that
to use snd_soc_write()

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index 7cea5a8..c2b6636 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2527,12 +2527,10 @@
 	}
 
 	/* Override HW-defaults */
-	ab8500_codec_write_reg(codec,
-				AB8500_ANACONF5,
-				BIT(AB8500_ANACONF5_HSAUTOEN));
-	ab8500_codec_write_reg(codec,
-				AB8500_SHORTCIRCONF,
-				BIT(AB8500_SHORTCIRCONF_HSZCDDIS));
+	snd_soc_write(codec, AB8500_ANACONF5,
+		      BIT(AB8500_ANACONF5_HSAUTOEN));
+	snd_soc_write(codec, AB8500_SHORTCIRCONF,
+		      BIT(AB8500_SHORTCIRCONF_HSZCDDIS));
 
 	/* Add filter controls */
 	status = snd_soc_add_codec_controls(codec, ab8500_filter_controls,