Move EffectsConfig loading in AudioPolicyEffects to libAudioHal

For HIDL, the EffectsConfig result based on config xml parsing.
For AIDL, the EffectsConfig result based on IFactory interface.

Bug: 261129656
Test: m on panther_hwasan-userdebug and boot, play audio
Test: atest audiopolicy_tests
Test: flash to Pixel t and test with audio effect enabled
Change-Id: I5d57fd2457f1e928ba011ea803fe9a7fc8259bb0