Added main-dex-list to tools/run-d8-on-gmscore.py.

Bug:
Change-Id: I7408f1dbd9ade74ec9ac7974d95066f9396e5628
diff --git a/tools/run-d8-on-gmscore.py b/tools/run-d8-on-gmscore.py
index e150278..342f61e 100755
--- a/tools/run-d8-on-gmscore.py
+++ b/tools/run-d8-on-gmscore.py
@@ -58,6 +58,9 @@
   if not os.path.exists(outdir):
     os.makedirs(outdir)
 
+  if 'main-dex-list' in values:
+    args.extend(['--main-dex-list', values['main-dex-list']])
+
   if options.d8_flags:
     args.extend(options.d8_flags.split(' '))