ASoC: Fix reg_word_size for ak4104

According to the register map in datasheet, the registers are 8 bit.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
1 file changed