Fix archiving bucket

R=ager@google.com

Bug:
Change-Id: Ice0f0f04c792ea2cca64e5927590455e00129064
diff --git a/tools/archive.py b/tools/archive.py
index 7989b8a..ee1053d 100755
--- a/tools/archive.py
+++ b/tools/archive.py
@@ -9,7 +9,7 @@
 import sys
 import utils
 
-ARCHIVE_BUCKET = 'r8-release'
+ARCHIVE_BUCKET = 'r8-releases'
 
 def GetVersion():
   r8_version = r8.run(['--version'], build = False).strip()