[autotest] Add results and logs dirs to .gitignore

Now that more folks are running an autotest instance on their workstations,
perhaps it's worth adding these.

BUG=None
TEST=create logs/ and run git st; it should not be shown.

Change-Id: Id972bf5076915c51a0e9221d3b6b6aa83caa0d98
Reviewed-on: https://gerrit.chromium.org/gerrit/14837
Commit-Ready: Chris Masone <cmasone@chromium.org>
Tested-by: Chris Masone <cmasone@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
diff --git a/.gitignore b/.gitignore
index ec559c1..fb652fe 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,8 @@
 client/tests/kvm/env
 client/tmp
 client/tests/kvm/*.cfg
+logs/*
+results*
 server/tmp
 tko/parsers/test/site_scenarios
 ExternalSource