ALSA: ASoC: Tweak tlv320aicx reg_cache_size

ASoC codec drivers frequently set the register cache size using sizeof()
rather than ARRAY_SIZE(). For tlv320aicx either is correct since the
registers are 8 bit but update to use ARRAY_SIZE() for clarity.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/soc/codecs/tlv320aic3x.c

@@ -1021,7 +1021,7 @@ static int aic3x_init(struct snd_soc_device *socdev)
 	codec->set_bias_level = aic3x_set_bias_level;
 	codec->dai = &aic3x_dai;
 	codec->num_dai = 1;
-	codec->reg_cache_size = sizeof(aic3x_reg);
+	codec->reg_cache_size = ARRAY_SIZE(aic3x_reg);
 	codec->reg_cache = kmemdup(aic3x_reg, sizeof(aic3x_reg), GFP_KERNEL);
 	if (codec->reg_cache == NULL)
 		return -ENOMEM;