Updating emu config to explicitly add two button nav mode

Bug: 146173841
Test: Manual
Change-Id: I1c818a8dbfb4821777b568af66467c5730bb16c1
diff --git a/vendor.mk b/vendor.mk
index 234940d..0388567 100644
--- a/vendor.mk
+++ b/vendor.mk
@@ -114,7 +114,8 @@
     android.hardware.keymaster@4.0-service
 
 PRODUCT_PACKAGES += \
-    DisplayCutoutEmulationEmu01Overlay
+    DisplayCutoutEmulationEmu01Overlay \
+    NavigationBarMode2ButtonOverlay \
 
 ifneq ($(EMULATOR_VENDOR_NO_GNSS),true)
 PRODUCT_PACKAGES += \