ASoC: msm: qdsp6v2: Add support for Secondary AUXPCM

Adding routing, mixer commands, AFE support for secondary AUXPCM
for MSM8974 Secondary AUXPCM can support Playback, Recording, Voice
call through VoLTE, Voip, etc. Also, added support for AFE, ADM etc.
for ADSP related functionalities.

Change-Id: Ia27688613a085d9d67b2e8e63f892e9993df66d1
Signed-off-by: Banajit Goswami <bgoswa@codeaurora.org>