Relax VoE's max packet length threshold.
Relax VoE's max packet length threshold.

The earlier threshold would cause packets from a currently available
codec (L16, 32 kHz, stereo) to be discarded.

TESTED=voe_cmd_test using L16, 32 kHz, stereo now works properly.
R=henrika@webrtc.org, turaj@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1305008

git-svn-id: 917f5d3ca488f358c4d40eaec14422cf392ccec9@3936 4adac7df-926f-26a2-2b94-8c16560cd09d

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