ASoC: wm8962: Replace codec->control_data with wm8962->regmap

With the ongoing component-ization of the ASoC framework and the continuing
migration to using regmap for IO the control_data field of the snd_soc_codec
struct will eventually be removed. Prepare the wm8962 driver for this by using
wm8962->regmap instead of accessing the CODEC's control_data field.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/codecs/wm8962.c

@@ -1479,7 +1479,9 @@ static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 
 static int wm8962_dsp2_write_config(struct snd_soc_codec *codec)
 {
-	return regcache_sync_region(codec->control_data,
+	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
+
+	return regcache_sync_region(wm8962->regmap,
 				    WM8962_HDBASS_AI_1, WM8962_MAX_REGISTER);
 }