[TIAF] Dup AdBuffer early to avoid race conditions

If we dup the buffer in the main thread, it's possible that the buffer has been released and is no longer valid.

Bug: 280886498
Test: atest TvInteractiveAppServiceTest#testNotifyAdBufferReady
Change-Id: I7f07f4ab42f59c2cf91d47d1dd8a8aca93ae70d2
2 files changed