Enable 'latest' in run-d8-on-gmscore, also fix missing main-dex-list...

...in gmscore_data.py

Bug:
Change-Id: Id1dab4de81f0c7f7b8c747209f81abcfae9c251b

tools/run-d8-on-gmscore.py

diff --git a/tools/run-d8-on-gmscore.py b/tools/run-d8-on-gmscore.py
index 342f61e..63865d0 100755
--- a/tools/run-d8-on-gmscore.py
+++ b/tools/run-d8-on-gmscore.py
@@ -25,7 +25,7 @@
   result.add_option('--version',
                     help = '',
                     default = 'v9',
-                    choices = ['v9', 'v10'])
+                    choices = ['v9', 'v10', 'latest'])
   result.add_option('--type',
                     help = '',
                     default = 'proguarded',