Upgrade to the latest OkHttp.

Note the internal package name has changed from libcore.net.http
to com.squareup.okhttp.

Change-Id: Ib0eb4bdd69f24f2a255975460bd001e59657ddcc
diff --git a/jarjar-rules.txt b/jarjar-rules.txt
index 83c5233..1629f1c 100644
--- a/jarjar-rules.txt
+++ b/jarjar-rules.txt
@@ -1 +1 @@
-rule libcore.** libcoreunbundled.@1
+rule com.squareup.** com.android.@1