h264parse: accumulate a second AU when the current AU is a field

That full frames are expected in alignment=au(both HEVC and H264), so need to accumulate a second AU when the current AU is a field for interlaced bitstreams in h264parse.

sys/msdk/gstmsdkdec.c

@@ -903,7 +903,6 @@ gst_msdkdec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
     bitstream.Data = map_info.data;
     bitstream.DataLength = map_info.size;
     bitstream.MaxLength = map_info.size;
-    bitstream.DataFlag = MFX_BITSTREAM_COMPLETE_FRAME;
   } else {
     /* Non packetized streams: eg: vc1 advanced profile with per buffer bdu */
     gst_adapter_push (thiz->adapter, gst_buffer_ref (input_buffer));