AudioSystem: Modernize containers

Remove usage of android::DefaultKeyedVector and
android::Vector.

Test: atest CtsMediaAudioTestCases
Bug: 326504627
Merged-In: Id044bfc55633eb0a10321ecfc2b25d3b77a488f4
Change-Id: Id044bfc55633eb0a10321ecfc2b25d3b77a488f4
2 files changed