gst_video_sync: More specific logging domain
gst_video_sync: More specific logging domain

Get debug logs with env:
  G_MESSAGES_DEBUG=gst_video_sync

EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes,EndPointCorp/lg_ros_nodes