Manifest for Android O IOT Preview 8 (4718959)

Change-Id: I48d987c40fdf8b143b1991c26bee4a20414504a0
diff --git a/default.xml b/default.xml
index f136c04..76cb05a 100644
--- a/default.xml
+++ b/default.xml
@@ -4,7 +4,7 @@
   <remote  name="aosp"
            fetch=".."
            review="https://android-review.googlesource.com/" />
-  <default revision="o-mr1-iot-preview-7"
+  <default revision="o-mr1-iot-preview-8"
            remote="aosp"
            sync-j="4" />