Manifest for Android 9.0.0 Release 18 (PPR2.181005.003.A1)

Change-Id: Ibe2db402ec05c6cfbd75a040e9bd7790e2f64889
diff --git a/default.xml b/default.xml
index b714a9a..ae22e40 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-9.0.0_r10"
+  <default revision="refs/tags/android-9.0.0_r18"
            remote="aosp"
            sync-j="4" />