android: a few more 8.1 changes

Change-Id: If105898d004295e5b42ca6ebda389e835d089f2b
diff --git a/omni-default.xml b/omni-default.xml
index 6c678e8..5d2787a 100644
--- a/omni-default.xml
+++ b/omni-default.xml
@@ -11,7 +11,7 @@
   <include name="omni-caf.xml" />
 
   <!-- OmniROM Projects -->
-  <project path="android" name="android" remote="omnirom" revision="android-8.0" />
+  <project path="android" name="android" remote="omnirom" revision="android-8.1" />
 
   <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-8.1" />