ASoC: msm: add kcontrol to support ASRC config

Added kcontrol to write clock drift to ASRC module in ADSP. There
are two options:
1. read drift from an active AFE port, and write to target ASRC module.
   The read-and-write process will loop automatically with configurable
   delay. (50 ms by default)
2. write drift value to target ASRC module for one time operation.

Change-Id: I2df7ed646d53612aca96074c0ca3d44a404cebf4
Signed-off-by: Han Lu <hanlu@codeaurora.org>