Manifest for Android 9.0.0 Release 7 (PPR2.180905.006)

Change-Id: If2a020234ebbdb8fe80bfa292b2989aed9b04c4e

default.xml

@@ -4,7 +4,7 @@
   <remote  name="aosp"
            fetch=".."
            review="https://android-review.googlesource.com/" />
-  <default revision="refs/tags/android-9.0.0_r6"
+  <default revision="refs/tags/android-9.0.0_r7"
            remote="aosp"
            sync-j="4" />