ASoC: wcd9320: Set DMIC sample rate in the codec

Set the correct clock frequency divider values in codec registers
based on MCLK and DMIC sample rate.  Set the ANC DMIC X2 based on
the sample rate.

Change-Id: I23bb38112a3f2045e1844224545a3c2a0fdd8446
Signed-off-by: Damir Didjusto <damird@codeaurora.org>