Add effect config xml parser in AIDL effect factory

Bug: 255361653
Test: parse an example audio_effects.xml
atest VtsHalAudioEffectFactoryTargetTest
atest VtsHalAudioEffectTargetTest
atest VtsHalEqualizerTargetTest

Change-Id: I566aaf814470342f1ef55414889bbd3aea462f9a
4 files changed