ASoC: msm: qdsp6v2: add compat mode support for voice driver

When kernel is compiled for 64 bit and user space client is in
32 bit mode, then compat IOCTL path is taken instead of normal
IOCTL path. Add compat IOCTL support in voice platform driver.
This is needed to enable local call hold in DSDA use case.

Change-Id: I74e49f4986a4754a25189613828cf11283fe16e3
Signed-off-by: Narsinga Rao Chella <nrchella@codeaurora.org>
CRs-fixed: 673882