Extend tests to include new mute API

Testing the mutedBy and isMuted SystemAPI for the
AudioPlaybackConfiguration. For this we need to adopt the shell
permission with MODIFY_AUDIO_ROUTING

Test: atest android.media.audio.cts.AudioPlaybackConfigurationTest
Bug: 248145607
Change-Id: If0b01ba5d6b437831fc068dda47036103bcaef36
1 file changed