Change setting VP8 codec specific info values by HW VP8 encoder
to follow SW implementation.

This fixes video freezing observed when connecting Android AppRtcDemo
on devices with hW encoder support with Chrome apprtc.

BUG=
R=mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/31629004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7414 4adac7df-926f-26a2-2b94-8c16560cd09d