Enable new yaml file for reference nav that lists all framework files.

This depends on DocLava changes in ag/3382461

bug: b/69845924

test: make ds-docs

Change-Id: I4acd2c2034581b349ab4c00cbfe195ee5eca2354
diff --git a/Android.mk b/Android.mk
index dfcfa2b..a9cb7cc 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1376,6 +1376,7 @@
 		-toroot / \
 		-hdf android.whichdoc online \
 		-devsite \
+		-yamlV2 \
 		$(sample_groups) \
 		-hdf android.hasSamples true \
 		-samplesdir $(samples_dir)