audio: Parameter to indicate ADTS compressed data

- Add a new offload parameter for ADTS compressed data.
This parameter will be used by usecases like widevine.

Change-Id: I526d119368810f486875a03834e221aabfaacc78
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_hardware_libhardware into temp