Make camera definitions work on 7971

Flip over to the real camera definitions and add support for 7971

Change-Id: I5ca92212cabba105952d44bc740970ad9ed5f92f
diff --git a/y2020/vision/BUILD b/y2020/vision/BUILD
index ded680d..6850a27 100644
--- a/y2020/vision/BUILD
+++ b/y2020/vision/BUILD
@@ -43,7 +43,7 @@
         "//aos/events:shm_event_loop",
         "//aos/network:team_number",
         "//third_party:opencv",
-        "//y2020/vision/sift:demo_sift",
+        "//y2020/vision/tools/python_code:sift_training_data",
         "//y2020/vision/sift:sift971",
         "//y2020/vision/sift:sift_fbs",
         "//y2020/vision/sift:sift_training_fbs",