ASoC: wm2000: Correct register size

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 3fd5b29..a3acb7a 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -702,7 +702,7 @@
 }
 
 static const struct regmap_config wm2000_regmap = {
-	.reg_bits = 8,
+	.reg_bits = 16,
 	.val_bits = 8,
 
 	.max_register = WM2000_REG_IF_CTL,