ASoC: msm: qdsp6v2: Add device dependent nodes

Mixer controls to communicate data from userspace to kernel for
audio post processing features where tuning parameters range from
1 through 200kb depending on the end device is not efficient.
Device dependent nodes are added to exchange the huge data blocks
through IOCTL.

Change-Id: Ie6f598249c76929d52e00378e1446115999ebc62
Signed-off-by: Subhash Chandra Bose Naripeddy <snariped@codeaurora.org>
Signed-off-by: Krishnankutty Kolathappilly <kkolat@codeaurora.org>