AIDL effect: Add Equalizer parameters implementation and vts

Bug: 238913361
Test: atest VtsHalAudioEffectTargetTest
atest VtsHalAudioEffectFactoryTargetTest
atest VtsHalEqualizerTargetTest

Change-Id: I94b2283ca2aa0e45715e1c9ac3ea6ad809ec2a2c
15 files changed