fate: Add vorbiscomment cover art test

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

tests/fate/cover-art.mak

@@ -26,6 +26,10 @@ FATE_COVER_ART-$(CONFIG_WV_DEMUXER) += fate-cover-art-wv
 fate-cover-art-wv: CMD = md5 -i $(TARGET_SAMPLES)/cover_art/luckynight_cover.wv -an -c:v copy -f rawvideo
 fate-cover-art-wv: REF = 45333c983c45af54449dff10af144317
 
+FATE_COVER_ART-$(CONFIG_OGG_DEMUXER) += fate-cover-art-ogg
+fate-cover-art-ogg: CMD = md5 -i $(TARGET_SAMPLES)/cover_art/ogg_vorbiscomment_cover.opus -map 0:v -c:v copy -f rawvideo
+fate-cover-art-ogg: REF = 7f117e073620eabb4ed02680cf70af41
+
 FATE_COVER_ART = $(FATE_COVER_ART-yes)
 
 $(FATE_COVER_ART): CMP = oneline