manifest: update to r43

Change-Id: If7dde499b8422a16c99d4d9ba5fdae2170ca9149
diff --git a/default.xml b/default.xml
index 8dad737..1cb2103 100644
--- a/default.xml
+++ b/default.xml
@@ -21,7 +21,7 @@
   <remote  name="private"
            fetch="ssh://git@github.com" />
 
-  <default revision="refs/tags/android-6.0.1_r30"
+  <default revision="refs/tags/android-6.0.1_r42"
            remote="aosp"
            sync-j="4" />