Deprecate support for legacy effect config file audio_effects.conf

Bug: 279987639
Test: build panther and test audio with effects enabled
Test: m dumpEffectConfigFile
Test: /vendor/bin/dumpEffectConfigFile --xml /vendor/etc/audio_effects.xml
Change-Id: Id3ec0934333aea174ab7469887a6d7bf416f2a42
9 files changed