ASoC: uda134x - set reg_cache_default to uda134x_reg

After checking the code in 2.6.36,
I found this is missing during multi-component conversion.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/uda134x.c

@@ -597,6 +597,7 @@ static struct snd_soc_codec_driver soc_codec_dev_uda134x = {
 	.resume =       uda134x_soc_resume,
 	.reg_cache_size = sizeof(uda134x_reg),
 	.reg_word_size = sizeof(u8),
+	.reg_cache_default = uda134x_reg,
 	.reg_cache_step = 1,
 	.read = uda134x_read_reg_cache,
 	.write = uda134x_write,