aac: set initial timestamp to zero

Bug: 127405861
Test: bug repro steps
Change-Id: Id080eeb2345c19651329da3a6b7d7928a9aa3463
(cherry picked from commit 19da254e6a07c909241db2ff2cd8338059bf7745)
1 file changed
tree: 4c561e093af7358b3620a7bb1e366e20b6ba8837
  1. codec2/
  2. hooks/
  3. media/
  4. Android.bp
  5. OWNERS