update V8 to r5532 as required by WebKit r68651

Change-Id: I5f75eeffbf64b30dd5080348528d277f293490ad
diff --git a/AUTHORS b/AUTHORS
index cd6eeac..2403fbb 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -9,6 +9,7 @@
 
 Alexander Botero-Lowry <alexbl@FreeBSD.org>
 Alexandre Vassalotti <avassalotti@gmail.com>
+Andreas Anyuru <andreas.anyuru@gmail.com>
 Burcu Dogan <burcujdogan@gmail.com>
 Craig Schlenter <craig.schlenter@gmail.com>
 Daniel Andersson <kodandersson@gmail.com>