gst1-plugins-base: fix build of theora plugin

Signed-off-by: W. Michael Petullo <mike@flyn.org>

multimedia/gst1-plugins-base/Makefile

@@ -230,7 +230,7 @@ $(eval $(call GstBuildPlugin,playback,media decoder (v2),pbutils,,))
 $(eval $(call GstBuildPlugin,gio,GIO,,,))
 $(eval $(call GstBuildPlugin,ogg,Ogg,riff tag pbutils video,,+libogg))
 $(eval $(call GstBuildPlugin,tcp,TCP,,,))
-$(eval $(call GstBuildPlugin,theora,Theora,,,))
+$(eval $(call GstBuildPlugin,theora,Theora,tag video,,+libogg +libtheora))
 $(eval $(call GstBuildPlugin,typefindfunctions,'typefind' functions,audio pbutils tag video,,))
 $(eval $(call GstBuildPlugin,videotestsrc,video test,video,,+liboil))
 $(eval $(call GstBuildPlugin,volume,volume,audio controller,,+liboil))