Hide STATE_PLAYBACK_SUPPRESSED from the public api

API deadline was missed for advancing trunk stable flag to nextfood,
so removing STATE_PLAYBACK_SUPPRESSED from the api for V to advance the
flag. It should be added to the API with the next release.

Bug: b/295518668
Test: mp droid
Change-Id: I5cec250bcb02745c05570c7be5fbd2ab230abd26
2 files changed