vp9dec: fix Vp9SegmentationInfoData mistake.
vp9dec: fix Vp9SegmentationInfoData mistake.

When the frame is intra only or error_resilient_mode is on,
priv->segmentation(Vp9SegmentationInfo structure) should be
set to default value(0).

Signed-off-by: Zhong Cong <fbc1588e6b9489a864c9ee5f55f730ef2ee5e810@intel.com>

andyLiuChina/libyami,zhaobob/libyami,uartie/libyami,BtbN/libyami,andyLiuChina/libyami,andyLiuChina/libyami,uartie/libyami,dspmeng/libyami,lizhong1008/libyami,clearlylin/libyami,dspmeng/libyami,lizhong1008/libyami,stripes416/libyami,yizhouwei/libyami,halleyzhao/libyami,01org/libyami,uartie/libyami,stripes416/libyami,seanvk/libyami,YuJiankang/libyami,dspmeng/libyami,chivakker/libyami,halleyzhao/libyami,seanvk/libyami,zhaobob/libyami,01org/libyami,YuJiankang/libyami,YuJiankang/libyami,BtbN/libyami,lizhong1008/libyami,zhaobob/libyami,yizhouwei/libyami,yizhouwei/libyami,BtbN/libyami,clearlylin/libyami,halleyzhao/libyami,halleyzhao/libyami,chivakker/libyami,clearlylin/libyami,andyLiuChina/libyami,BtbN/libyami,stripes416/libyami,01org/libyami,seanvk/libyami,chivakker/libyami