audio: Fix default surround sound config

Ensure that all formats returned by
AudioPolicyConfigXmlConverter::getDefaultSurroundSoundConfig
can be converted into legacy values.

Bug: 290116634
Test: atest audio_policy_config_xml_converter_tests
Change-Id: I3a46ea5ee4805f719c8977064c9d8d681a75cff2
(cherry picked from commit 724b24f895ca8cce6cd6ce07bbea725e8eb6c79f)
Merged-In: I3a46ea5ee4805f719c8977064c9d8d681a75cff2
5 files changed