Adjust expected text frame length in ID3

When encountering a null character in an ID3 text frame, adjust the
expected size accordingly so it isn't misidentified as ASCII.

This fixes http://b/2517444

Change-Id: I19a3284d378e882c33b28ecee528a434716c7707
1 file changed
tree: 76352a89520915633c9065c969f7e5061e5354a6
  1. camera/
  2. cmds/
  3. include/
  4. media/