RM6785: Drop MTK audiopreprocessing

OSS counterpart works well, instead of using prebuilt blobs, use oss
where possible. This has no adverse effect on the audio quality.
Switch to OSS libaudiopreprocessing.

Signed-off-by: Vaisakh Murali <mvaisakh@statixos.com>
Change-Id: I2082e4d224608c3acfdc817d09a22755730ba504
2 files changed