ASoC: msm: add support to enable codec core clock through AFE

Clock gating is enabled on the modem to enable the codec digital
core clock, need to send request to AFE to vote for the digital
core clock through APR.

Change-Id: Ie548b3a19ee4fa2437ee0705e498dd709d004992
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>