Fix Xing seeking when TOC[0] == 0

A file purchased from the Amazon mp3 store had two 0 entries at the
start of the TOC (presumably because there was a lot of silence at
the beginning, which compresses well), which made TOC based seeking
think the TOC was not valid.
b/6170518

Change-Id: Ie7135b4af06ebb925f63a374be780cf3a9404347
2 files changed
tree: 86f010b63e2b92e398e766387191175257777d69
  1. camera/
  2. cmds/
  3. drm/
  4. include/
  5. media/
  6. services/