ASoC: msm: qdsp6v2: add support for dynamic TTY mode change

DSP supports enabling/disabling and changing between TTY modes
while a call is already ongoing. Add support in voice drivers
to enable and switch between different TTY modes.

Change-Id: Idf3372fc3d0205f706584e8b3652dc5e39b4ceef
CRs-fixed: 608183
Signed-off-by: Narsinga Rao Chella <nrchella@codeaurora.org>
3 files changed