Small fixes to plot_neteq_delay.m

Fixing problems with wrap-arounds and other small things. Adding an
extra output value.

Review URL: https://webrtc-codereview.appspot.com/4929004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5210 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed