cherry-pick 3d9e6a99: Revert Remove AOSP support. Do not merge.

Change-Id: I599d2dd4a364d5e023112569446995792a015512
diff --git a/self-extractors/PART3 b/self-extractors/PART3
new file mode 100644
index 0000000..6847be5
--- /dev/null
+++ b/self-extractors/PART3
@@ -0,0 +1,12 @@
+
+if test $? != 0
+then
+  echo
+  echo ERROR: Couldn\'t extract files. 1>&2
+  exit 3
+else
+  echo
+  echo Files extracted successfully.
+fi
+exit 0
+