Revert "Remove win-asan from console view again for a bit."

This reverts commit 7acc0647.

Reason for revert: The builder seems to work now. (Note: It currently
only compiles everything and doesn't run any tests yet.)

Original change's description:
> Remove win-asan from console view again for a bit.
> 
> Getting bots for the builder is taking longer than expected, and having a
> perma-purple bot on the main waterfall isn't so great.
> 
> I'll revert this again once hardware for the builder has been allocated and
> configured.
> 
> Bug: 869973
> Change-Id: I702c4694eb13cc39cc07bc01f19a6f7871e9f47c
> Reviewed-on: https://chromium-review.googlesource.com/1166170
> Reviewed-by: Dirk Pranke <dpranke@chromium.org>
> Commit-Queue: Nico Weber <thakis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#581400}

TBR=thakis@chromium.org,dpranke@chromium.org,sergeyberezin@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 869973
Change-Id: Id4498b0cb964a22d33e5b7f76b135c8d560a7291
Reviewed-on: https://chromium-review.googlesource.com/1179001Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Sergey Berezin <sergeyberezin@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583883}

infra/config/global/luci-milo.cfg

@@ -592,6 +592,12 @@ consoles {
     category: "chromium.chrome"
     short_name: "cro"
   }
+  builders {
+    name: "buildbot/chromium.memory/win-asan"
+    name: "buildbucket/luci.chromium.ci/win-asan"
+    category: "chromium.memory|win"
+    short_name: "asn"
+  }
   builders {
     name: "buildbot/chromium.memory/Mac ASan 64 Builder"
     name: "buildbucket/luci.chromium.ci/Mac ASan 64 Builder"
@@ -1038,6 +1044,12 @@ consoles {
   repo_url: "https://chromium.googlesource.com/chromium/src"
   refs: "refs/heads/master"
   manifest_name: "REVISION"
+  builders {
+    name: "buildbot/chromium.memory/win-asan"
+    name: "buildbucket/luci.chromium.ci/win-asan"
+    category: "win"
+    short_name: "asn"
+  }
   builders {
     name: "buildbot/chromium.memory/Mac ASan 64 Builder"
     name: "buildbucket/luci.chromium.ci/Mac ASan 64 Builder"