fix compiler warning in OMX_VideoExt.h

Bug: 11969958
Change-Id: I6dbc1c5a56c5f8db0af931c9391299aaaf1b536a
diff --git a/include/media/openmax/OMX_VideoExt.h b/include/media/openmax/OMX_VideoExt.h
index fb10cbb..3c97e14 100644
--- a/include/media/openmax/OMX_VideoExt.h
+++ b/include/media/openmax/OMX_VideoExt.h
@@ -143,7 +143,7 @@
     OMX_U32 nTemporalLayerBitrateRatio[OMX_VIDEO_ANDROID_MAXVP8TEMPORALLAYERS];
     OMX_U32 nMinQuantizer;
     OMX_U32 nMaxQuantizer;
-};
+} OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE;
 
 /** HEVC Profile enum type */
 typedef enum OMX_VIDEO_HEVCPROFILETYPE {