manifest: re-add vendor/cyngn

Change-Id: Ib729b6ed28d7dc65aff681d7ee6615655f5974f8
diff --git a/default.xml b/default.xml
index 2ee5606..3b684d4 100644
--- a/default.xml
+++ b/default.xml
@@ -557,4 +557,5 @@
   <project path="tools/studio/translation" name="platform/tools/studio/translation" groups="notdefault,tools" remote="aosp" revision="refs/tags/android-5.0.2_r1" />
   <project path="tools/swt" name="platform/tools/swt" groups="notdefault,tools" remote="aosp" revision="refs/tags/android-5.0.2_r1" />
   <project path="vendor/cm" name="CyanogenMod/android_vendor_cm" />
+  <project path="vendor/cyngn" name="cyngn/android_vendor_cyngn" />
 </manifest>