audio effects tests: fix tests in instant mode

commit edcb713a relies on CtsMediaAudioTestCases.apk to have permission
MODIFY_AUDIO_SETTINGS which is niot true whne running in instant mode.

Skip the tests if global effects are present and we are in instant mode.

Also migrate tests to Junit4.

Bug: 317747577
Test: run cts --enable-parameterized-modules --module-parameter instant_app -m CtsMediaAudioTestCases -t android.media.audio.cts.BassBoostTest
Change-Id: I53767b4304c6c3d293d5d80bd5aed6143877d9e1
11 files changed