Fix for some non interleaved avi files that gets played twice or won't end

Fix for some non interleaved avi files that gets played twice or won't end
This changes so we assume EOF when we can't find the next
streams index entry for non interleaved file.

http://trac.xbmc.org/ticket/5585

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>