Manifest for Android R Preview 3 (RPP3.200320.017)

Change-Id: Ib94e9ef6d148b25c74c15df4c6aeaf2f494d9ef7
diff --git a/default.xml b/default.xml
index aad4d20..aed27a9 100644
--- a/default.xml
+++ b/default.xml
@@ -4,7 +4,7 @@
   <remote  name="aosp"
            fetch=".."
            review="https://android-review.googlesource.com/" />
-  <default revision="refs/tags/android-r-preview-2"
+  <default revision="refs/tags/android-r-preview-3"
            remote="aosp"
            sync-j="4" />