Manifest for Android P Preview 3 (PPP3.180510.008)

Change-Id: I9ed12cec0a9aceec5d745bce21941f1c03502bb2
diff --git a/default.xml b/default.xml
index 77512a7..62b19a4 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-p-preview-2"
+  <default revision="refs/tags/android-p-preview-3"
            remote="aosp"
            sync-j="4" />