[milo] load started and scheduled builds separately
[milo] load started and scheduled builds separately

R=40f3d43a28ebae3cb819288542e1c84d73d962d5@chromium.org

Bug: 803702
Change-Id: Icbb599aa06eea271c38487e479ad231b3c0451e8
Reviewed-on: https://chromium-review.googlesource.com/874787
Reviewed-by: Robbie Iannucci <40f3d43a28ebae3cb819288542e1c84d73d962d5@chromium.org>
Commit-Queue: Robbie Iannucci <40f3d43a28ebae3cb819288542e1c84d73d962d5@chromium.org>

luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go