Generate media control action buttons from Media3

Instead of using the framework PlaybackState API, use the session token
to get a Media3 controller, and use that to generate the media control action
buttons, following the same scheme as currently

Flag: com.android.systemui.media_controls_button_media3
Bug: 360196209
Test: atest Media3ActionFactoryTest MediaDataLoaderTest
Test: manual
Change-Id: I884ff9f39bec01298af1241200fc98278ee35413