exynos: Import alternative audio HAL

* From https://gitlab.com/Linaro/96boards/e850-96/platform/hardware/samsung_slsi/-/tree/3e8336d6f04504fb2377a52909c98cd38ac1d368/exynos/libaudio/audiohal

Change-Id: I46d50402adb1794cad204056c2cec90b92e9b60e
19 files changed