audio: Fix separated audio input support

 * Fix declarations for QCOM's refactoring.
 * Allow enablement via board flags.

Change-Id: I162d6f1d9a955df2dd9f4e47fb04b081664fcaf4
audio: Shush noisy logging

Change-Id: If73c6c95877c4e63eb9ac0f208c14fc8ba1de681
alsa_sound: Disable the qcom.audio init check

 * No need to delay mediaserver startup on CM.

Change-Id: Ia8bee06cae1c3f0c1ac405e95664dda118231034
alsa_sound: Shush more logspam

 * Don't spam the logs when playing on LPA

Change-Id: Idde5a9936c9fd52125f483c4ea032652e84ff62a
alsa_sound: Add support for Audience A2220

Change-Id: Iec6d384feef11fb23b1cbacc686d065085bd8a11

Conflicts:
	alsa_sound/ALSADevice.cpp