ASoC: tlv320aic3x: add missing registers and bits

Adds register and bit shift definitions in header file.
Changes are for TLV320AIC310x based on data sheet.

Signed-off-by: Jiri Prchal <jiri.prchal@aksignal.cz>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>