legacy/msm7x30: Remove dead code.

Change-Id: I729508452f317fc3c4a36fd19b72ab9836c7b3d2
legacy/alsa_audio: Added backward comp for oppo csd lib

Change-Id: If67b62dc9ef9c754d41efe2b13e043f2dc050331
legacy/msm7x30: Change default audio sample rate

Return Host PCM interface sample rate based on
AF resampler quality value.

(cherry picked from commit fbaba9b736d0b77c989c80946ffb7d105641c07d)

Change-Id: I204f423051d97be5ff4dfa9805406eca61a25966
audio/msm7x30: Support for Samsung audio devices

Change-Id: I2a624cddd99e02a9e0c73e829cc28dd520902074
legacy/msm7x30: Fix audio resampler check

https://github.com/CyanogenMod/android_frameworks_av/commit/ac6020508acedd316391dee42329040bf45f8d90 changed 255 to 4
legacy/msm7x30: Silence logcat spam
legacy/msm7x30: Enable stereo recording