media: add OMX extensions for video temporal layering

Add static/dynamic configuration structures to setup/tune
video encoder for temporal layering

Bug: 27596987
Change-Id: Ic260872aa49faee6d17a84e6177ef94c35ef0d68
diff --git a/include/media/openmax/OMX_IndexExt.h b/include/media/openmax/OMX_IndexExt.h
index 1724576..b688d1d 100644
--- a/include/media/openmax/OMX_IndexExt.h
+++ b/include/media/openmax/OMX_IndexExt.h
@@ -78,6 +78,8 @@
     OMX_IndexParamVideoHevc,                        /**< reference: OMX_VIDEO_PARAM_HEVCTYPE */
     OMX_IndexParamSliceSegments,                    /**< reference: OMX_VIDEO_SLICESEGMENTSTYPE */
     OMX_IndexConfigAndroidIntraRefresh,             /**< reference: OMX_VIDEO_CONFIG_ANDROID_INTRAREFRESHTYPE */
+    OMX_IndexParamAndroidVideoTemporalLayering,     /**< reference: OMX_VIDEO_PARAM_ANDROID_TEMPORALLAYERINGTYPE */
+    OMX_IndexConfigAndroidVideoTemporalLayering,    /**< reference: OMX_VIDEO_CONFIG_ANDROID_TEMPORALLAYERINGTYPE */
 
     /* Image & Video common configurations */
     OMX_IndexExtCommonStartUnused = OMX_IndexKhronosExtensions + 0x00700000,