ASoC: wcd9320: Add compander support

The compander system on the wcd9320 codec is for increasing signal to
noise ratio.  Add compander support to archive higher quality on the RX
paths by reducing noise.

Change-Id: Ib8c4d5ed5b9c24f1a7f946ffc27eda114a61b92b
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>