ASoC: msm8x16-wcd: add mclk and pdm ctl register as non cacheable.

Update the codec register cacheable array with MCLK and PDM
control register.

CRs-Fixed: 644185
Change-Id: I1025839452755f4cc53c310ee0e59fae570227d4
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>