ASoC: SSM2602: Fix reg_cache_size

reg_cache_size is supposed to be the number of elements in the register cache,
not the size in bytes.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index 946797d..b04d280 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -602,7 +602,7 @@
 	.read = ssm2602_read_reg_cache,
 	.write = ssm2602_write,
 	.set_bias_level = ssm2602_set_bias_level,
-	.reg_cache_size = sizeof(ssm2602_reg),
+	.reg_cache_size = ARRAY_SIZE(ssm2602_reg),
 	.reg_word_size = sizeof(u16),
 	.reg_cache_default = ssm2602_reg,
 };